300zx tt plenum deletes Feb 26, 2011 · After a discussion about polished plenums, i though i would post up my progress so far Plenum nearly finished, got the last polish to do, which i will complete once its ready to go back together. Aug 6, 2007 · new sealant to half moons at back of heads to rocker cover. That assembly gets neglected and fails and leaks. Nov 4, 2011 · 1. ). The four bolts seen holding the rails can be removed so that the rails and hoses can be deleted. Jun 9, 2012 · on the plenum there is 2 holes under it where the Pipes that run each side of the engine around the back . She cranked up first time, but had a massive air leak. Remove your rear bar and replace it with a Veilside valance only. Log In / Sign Up; Advertise on Reddit This subreddit is for enthusiasts of the Nissan 300ZX Z31 and Z32 generations. Re: TT under plenum water line delete Pulling plenum can I have links for deletes I should do - DJ2_300zxLover 12:41:54 01/19/16 Water jacket bypass, if you don't have to worry about smog - YlwPrlZTT 22:46:48 01/20/16 Re: Water jacket bypass, if you don't have to worry about smog - DJ2_300zxLover 20:45:02 01/21/16 Nov 15, 2019 · Subject: Powdercoated plenum. Cheers Mar 6, 2013 · Alright guys, so I got through my first plenum pull a couple weeks ago. Throttle Body Coolant line bypass/removal. However, i was thinking of plopping on the Z32 upper intake plenum onto a VG30E. It does look the the egr pipes to the bottom of the plenum has been blanked which is a good thing. Damn them. I also go over on how to remove your fuel rail from the lower ple Jul 18, 2004 · You can delete the clutch booster, just use a check valve like the one in your booster line, that will help clear alot up on the driver side, also my FPR is routed under my mastercylinder along with the fuel filter. Follow Ups: AIV Delete Assistance - ooofoo 22:39:25 04/07/10. Whilst it's off I'll be doing the usual deletes and stuff and figure I'll paint the thing whilst I'm at it. May 19, 2020 · This video describes on how to delete the PCV system on a 1990-1996 NA Nissan 300zx! With Z32's getting older and older by the day, our PCV valves tend to fa all I can think of is: new fuel hoses (high pressure rated hoses), new PCVs, add catch cans between the PCVs and the rear valve cover ports (no need to catch can the front valve cover ports, those are behind baffles), intake plenum coolant piping delete, check your coolant fan and hub, new belts, replace the ps pump and/or hoses if anything is leaking. Coolant bypass, EGR delete, AAC delete, fuel and vacuum hoses, new style injectors and new fuel rail insulators, PCV hoses, IAC hoses, fuel filter, balance tube O-rings, valve cover gaskets aren't a bad idea since the plenum is off, knock sensor & harness if you're double jointed or pulling the lower plenum. Optional: 11810-40P00 - PCV valves (2 req'd) 11823-30P01 - PCV hose 11823-30P11 - PCV hose 11826-30P10 - PCV hose (rear) 11823-40P01 - PCV hose (TT passenger front valve cover) 11823-40P11 - PCV hose (TT driver front valve cover) Recently, my NA’s passenger side Throttle Body (TB) coolant line sprang a leak. 2nd on the deletes. A - run the 2 hoses into a t piece at the back of plenum then to my catch can. I did two minor things different. Remove the PCV valves on the underside of the intake manifold. The kit comes with two vacuum caps. Pulling the plenum the second time after - YlwPrlZTT 23:12:59 08/13/15. The throttle body coolant lines are widely considered to be an exercise in over-engineering and most owners delete them with practically no ill-effects. Posted by: Zeismic on November 13, 2019 at 7:59 PM : This message has been viewed 842 times. In this video you'll see a detailed view on how to remove the intake manifold as well as Feb 3, 2016 · no output from ficd or aac they just accept inputs. One kit required per vehicle. However, confused about the two vaccum line re-routes. what u/contactoutu said below - this deletes the plenum coolant lines as well as interrupting the PCV hose cross-over from the driver side (where the valve cover PCV ports are) to the passenger side PCV valve on the passenger side. The only ones I can find are just people vocally describing what to do. I worked out the coolant bypasses. I deleted mine when I did my build. im wanting to do this mainly for the engine clean up (damn hoses everywhere!) and easier time to Short video showing feletes on a vg30de motor Jun 19, 2017 · I'm considering hooking up the booster line straight to the plenum with a one way valve . 00 SKU: NIS300-16618-10VKT Item Name: Nissan OEM 300ZX Fuel Injector O-ring Set 90-94TT/90 fyi egr delete : Posted by: pubdefman on March 27, 2008 at 10:47 PM : This message has been viewed 368 times. thats it. But between that and the water line delete the plenum pull goes from frustrating and time consuming to something that could be done in a short amount of time. & 40. An EGR delete is most often performed as part of a plenum pull. As always, thank you in advance. 1. I imagine there are quite a few opinions out there on the PCV system and with the new turbo inlet pipes we are currently right in the middle of producing, it has raised a lot of questions about the option to remove the Common deletes are AIV, PRVR, and Plenum/TB Coolant Line. Top Display posts from previous: All posts 1 day 7 days 2 weeks 1 month 3 months 6 months 1 year Sort by Author Post time Subject Ascending Descending Fits Twin Turbo VG30DETT and Non Turbo VG30DE motors. This subreddit is for enthusiasts of the Nissan 300ZX Z31 and Z32 generations. all from above. I've removed my polished plenum to sell and got a stock one to replace it and i've never been too happy with the plenum bypass done on the car with the catch can as there was a huge vacuum on the back of the plenum causing a pipe Oct 7, 2019 · As seen at the last event at new hampshire motor speedway, I ran into an issue with the PCV's on my 1990-1996 Nissan 300zx. Anyway, mods you can delete this, or leave for future reference. Make sure This subreddit is for enthusiasts of the Nissan 300ZX Z31 and Z32 generations. So i'm beginning to think up a new project for my 1987 Nissan 300zx. Sits behind the plenum on a z32. new bead of sealeant to both exhaust covers. Feb 19, 2024 · This video was made for the overthinkers-such as myself. 300ZX (Z32) Balance Tube O-Ring Set For use on vehicles with hydraulic HICAS only. Deleting the EGR frees up space in the engine bay, as well as reducing the introduction of contaminants into your intake air. B) EGR is costly to replace when it fails. Apr 15, 2007 · If you do pull the plenum, that is considerably more work and time to think of if there are any deletes to do at the same time, test or change the injectors, test & clean AAC/ FICD, and definitely a good time to reseal the cam covers and now's also the time if you are going to detail or color the plenum. I have seen pictures of the metal pipes that comes out of the valve covers and turn 90 degrees to face the front of the car, in the pictures these had been turned 180 degrees so they faced back toward the bulkhead, which would make it alot easier to plumb into the catch tank. You have to have a maf. Gunmetal grey Genuine low km?s for car of this age regularly serviced every 5000 k's with full synthetic oil May 7, 2016 · Water feeds to the turbo`s are often problematic especially on ageing cars and to be honest have deleted a fair few myself with absolutely no problems, considering I have been doing this for near 20 years without a comeback is about as much proof as you need, all of the turbo re-builder`s I used confirmed that especially in standard guise they just heat the water up not cool the turbo`s!! Having idle problems, already have egr delete and coolant lines. what a pain in the arse. The kit I bought had plates to cap off the holes that are on the bottom of the plenum and a plug to shut off the drivers side exhaust. May 28, 2005 · 300ZX (Z32) Performance / Technical - AIV/PRVR/EGR removal - since my plenum is out, im thinking of considering these removals. After doing a bit of research and speaking to a bunch of z32 enthusiasts our 1st pcv delete video was just a temporary fix for me to keep driving at the trac This is a very quick video to just show what lines are deleted underneath the upper plenum and where to connect by bypass lines when doing the "under plenum PCV System, Explained, Deleted >>> posted by Ash's Z on April 19, 2011 at 04:21 PM : Message: No problems to report and a lot less crap on the engine to mess with. It has had the under plenum bypass done, again a good thing. Just what I was looking for. Will not fit 94+ Twin Turbo models with Sep 12, 2008 · Search for 300zx plenum coolant bypass. I capped off the plenum and capped the 2 ports on the exhaust cam cover. Which I struggle with. OEM 300ZX (Z32) Plenum Gasket. piece of beer can works fine. Location: Sulphur, LA 70665 Aug 23, 2010 · Car: 1st car 1990 Nissan 300zx N/A 2+2 5 Speed RIP :(2nd car 1986 Honda Prelude(Garbage) But 30mpg is nice :(3rd car 1990 Nissan 300zx N/A Project car! 4th Car 1996 Nissan 300zx TT 5spd 90k Cobalt green. What are really the disadvantages of deleting and bypass the cooling system? Plenum Pull (Removal Stage) Once all the parts on top of the plenum has been removed and set aside, the actual plenum removal can begin. Apr 5, 2018 · Removal of the Intake Manifold (also called the plenum) is necessary or helpful to perform several jobs on the VG30DE(TT), such as: Fuel Injector Replacement (as an alternative to the Dremel Method). On my turbo z31 I deleted everything and adjusted throttle open a little bit and it’s a dream. EGR's on the otherhand can lead to roadworthy issues if unlucky, also require a plenum pull to get rid of em so a lot more effort required there I was able to successfully delete in reasonable time without having to do any of the previous mentioned methods. Subject: 300zx na plenum tb coolant line delete : Posted by: jjamez on July 05, 2012 at 7:39 PM : This message has been viewed 2815 times. So I popped my plenum pull cherry! You get to the point of thinking what the hell have I done! Now just reading up on the coolant bypass to make it easier next time, and trying to get al Oct 28, 2015 · If your feel capable I'd remove the plenum and do the coolant bypass and EGR. Hoping to delete EGR soon !! SKIP TO 5 minute Jan 5, 2012 · I was looking at this and figured you plug the holes in the plenum each side. I used 1/4" BSPT plugs in the plenum where the PCV valves were because they fit better. Please take notice I think it went so well because I have downpipes already The IAT can be tapped into the intake plenum with an M14 tap. It is intended to be a clean solution for removing the EGR system on race-built, race-tuned engines. The delete is mostly done because A) One less thing to deal with for future plenum pulls. : Message: PCV System: Explained, Deleted. Plenum water bypass/delete. I have quite a few deletes on mine but it's a case of function rather than Subject: PCV system reroute - no more burning oil! WooHoo! Posted by: AshsZ (Fab Whore, Ph. PRVR is still in place and connected. You can remove the 3 solenoids, 2 beside the brake booster and one near the fuel filter to simplify hoses. i'm finding a of lot bits and pieces on how to delete Apr 5, 2018 · There are several metal coolant lines and vacuum lines mounted to the underside of the plenum. Only selling to get something newer and more sensible. 99 SKU: NIS300-17520 Item Name: Nissan OEM 300ZX Fuel Rails 1990-1994 Twin Turbo Cost: $160. I need to see or read exactly what to do I don’t have the necessary tools to pull the engine or move it forward at all, I know how to take the plenum off and have done it multiple times before. For anyone who has ever owned, driven, built, raced or admired the 300ZX. C) Pipes probably clogged up. I would also highly recommend getting the Haltech wideband module and a pair of wideband sensors, as you will be able to monitor AFRs for each bank on the fly and allow the full function of the Haltech's closed loop fuelling. In this video I delete the EGR and Plenum coolant line systems on a 1990-1996 Nissan 300zx. Remove all the hoses and tubes from the underside of the plenum (4 x 10 mm bolts and a lot of hose clamps) (41. Message: I have read and read that the plenum pull/install was easier after deletes but wow! When I pulled it a while back took me and a buddy over an hour to finesse that turd off. After studying this problem a bit, I decided I’d rather keep the coolant lines operational. B - run the 2 hoses to the pcv valves id like to do option -A- but im worried as to relieve crank pressure, will this setup still relieve the pressure. The new manifolds didn't have a port on them for EGR. Ships as a kit. Install the 1/4" BSPT plugs into the PCV valve fitting on the plenum. odometer: 148,500. Oh and thanks to Nick/Stadsport for taking the time to come up with the NA/TT diagrams. You can also remove all the AIV related bits inside the wheel wells. Doing the coolant bypass for the TB's makes pulling the plenum nearly 30% faster, and reduces coolan Feb 26, 2025 · 1990 nissan 300zx twin turbo. So I'm running to a few vacuum like hose placement problems. Music:Sky high trinity Music from #Uppbeat (free for Creators!):https:// Feb 25, 2009 · Before everybody moans at me i have had a look on the search but the only guide's i've found are on the TT engine. fuel: gas. You can purchase new front hoses for Twin Turbo HERE and new front hoses for Non Turbo HERE. Oct 3, 2011 · Where do people get the EGR delete plates from? I can only find on the Z1 site Cheers Mark Jan 20, 2021 · This video is of a 1990 300zx N/A plenum pull (sped up) and explanation of plenum coolant line delete and loop. I forgot how to post links but the address is inside - SammybTT(TN) 21:48:04 08/13/15. The EGR system in your 300zx is designed to recirculate gas from your exhaust back through your intake manifold. EGR bypass/removal. As seen in the next picture, there are many hoses on the bottom side of the plenum. Subject: PCV System, Explained, Deleted >>> Posted by: Ash's Z on April 19, 2011 at 4:21 PM : This message has been viewed 20333 times. May 17, 2009 · My plenum pipes on both my Z32 need replacement and it looks that i would finally delete those as i cannot find the oem pipes. After plenum pull, EGR delete time was a patient 3 hours. : Message: i'm in the process of pulling the plenum, and realizing the throttle body coolant lines are a pain, and will be an even bigger pain during plenum installation. Should give significant weight savings. Feb 20, 2022 · Going to be pulling my plenum very soon so that I can sort the valve cover leak. While your back there is replace the hoses from the turbo coolant lines, check the hard tree or delete it as well. Valve Cover re-seal. Message: Hey guys, So I did a PCV delete in the process of upgrading my 300zx with the 675RS kit. Here’s an underside picture of the upper plenum showing the location of the leaky hose (Note: Picture is of a TT upper plenum – not my Z’s). Main reason for asking is because the stock manifold/plenum heavily restricts access to the rest of the engine in terms of workability. There were vids on youtube but all seemed to be NA. First Plenum Install Posted by: Lumpydonut on August 29, 2012 at 8:26 PM : This message has been viewed 471 times. This kit is NOT for on-road use. Can anyone advise me on this process as i'm a novice at engine modding (clueless) and could use all the help i can get. plenum install help - sputnikZ 21:37:58 08/13/15. The issue we found out was that t Cleaning up the plenum (or trading for a polished one) 27. 00 Tax: 0. 31. All good future proofing. Insert another small breather into the hole left in the passenger side valve cover by the removal of the PCV valve, and cap off the port in the intake manifold. so i've decided to delete them. : In Reply To: At-205 inquiry posted by Humble-Zed on February 11, 2025 at 10:52 AM Sep 1, 2009 · Has anyone removed the air regulator, and if so how did you get to the bottom screw? I can not even get a finger to it so am I missing a trick here or is it really only possible with the plenum/engine removed? Jan 19, 2010 · rockchucker Posts: 4 Joined: Tue Jan 19, 2010 3:51 am Car: Blue 90 2+0 N/A 5-sp, 1993 Red Vert N/A 5-spd, 1993 Cocoa BronZe Vert N/A 5 spd Apr 3, 2015 · Today's work on the car took an unexpected diversion when one injector died and another was reading 100 ohms!. Subject: 300zx na plenum tb coolant line delete : Posted by: jjamez on July 05, 2012 at 7:39 PM : This message has been viewed 2818 times. Simple job and then you don't have to worry about any of those extra hoses springing a PCV Delete and Catch Can : Posted by: AtomicX on July 30, 2015 at 12:32 PM : This message has been viewed 1072 times. Apr 23, 2010 · Item Name: CZP 300ZX Silicone PCV Hose Kit w/ PCV Valves - Twin Turbo Cost: $83. Does anybody have any pictures of how they looped the lines for the water delete lines? Also does the picture below look correct to you?? Missing anything? RED = my changes. If you haven't already done so, remove the PCV hoses that lead to the back of the engine, and remove the lines at the back of the engine. Show off your car, ask technical questions, buying advice, and more. plenum bypass, (if your not sure) just check and replace any suspect hoses and make sure there sealing well. (sold) 1993 Nissan 300zx N/A Convertible (sold) 1991 Nissan 300zx N/A (Project) 2009 Nissan Altima 3. I know that commonly people just swap on a maxima or pathfinder intake to improve the flow. Posted by: Mongoose on February 15, 2025 at 1:37 PM : This message has been viewed 29 times. Follow Ups: N/A Plenum water delete lines, No EGR,AVI,CC,PRVR - nonstopna 15:18: (1986 300zx z31 Turbo) I need ideas on where to route the turbo coolant lines now that I've deleted the heater, and basically everything off the plenum. We additionally checked the bushings, arms, etc. Remove the idle air adjusting unit (4 x 8 mm long bolts) (42. Cleaning up the engine bay: PTU Relocate, Relay/Fuse Box Relocate, Cruise Control Delete, Relocating wiper relay, power steering reservoir relocate. I wanted to do an EGR delete along side my injector, fuel rail upgrade. 00 Quantity: 1 Total Cost: $160. First is the egr vacc line. It is a good reliable car, not too bad on petrol, and I am using it as my daily drive. CZP wiki - itsa300zx 22:17:00 05/16/23. Dec 17, 2023 · Part two of possibly 4 videos on the full 120k maintenance service. PCV reroute/delete. I initially thought it was a suspect IACV>Balance Tube hose, so I got a new one on. Oct 8, 2010 · Ok going to be tackling a plenum change at some point in the very near future, going to fit the polished one that's currently sitting in the boot of my black TT, i have spare throttle bodies and would like them polished up as well, but haven't really come across a very good clear write up about h This video is a complete step by step guide on how to remove a 1990-1996 Nissan 300zx Intake Plenum along with the Intake and Exhaust Valve Covers. Anorexia or bulimia will further shed kg's, and looking you trim and taught for summer, with the additional savings of being able to shop in the kiddies ware section. Follow Ups: TT under plenum water line delete - DavidsZ 20:18:18 05/16/23. take it off throw it away and manufacture a blank out of 1/4 aluminum plate so you blank off the hole in the plenum EGR blank it off so it doesn't create a vacuum leak. check seal on both intake covers. On the driver’s side, unclamp the PCV hose at the PCV valve location, and then try to pry the PCV hose so that it breaks its seal 2. its just the flange on the end of the pipe that bolts to the plenum that is at a different direction . so it can be done. I have heard there are ways of fitting the Z31 VG30E(T) manifold/plenum onto the DE(TT). I've no interest in polishing it smooth or anything. More controversial and possibly only legal for off-road use: PCV Reroute, EGR Removal, and Carbon Cannister removal. Want to delete the idle controls which seem to not be working and simplify more. These serve to carry coolant to the throttle bodies as well as the turbochargers (in turbo models). Also, if someone who has deleted AIV could kindly post (or email) a detailed picture of the EGR solenoid and related vacuum lines I would greatly appreciate it. 5 Mar 1, 2013 · Before reinstalling the upper intake plenum, some owners like to bypass the water hoses. D) on September 30, 2002 at 8:29 AM This message has been viewed 3949 times. If I do those deletes, do I have to use an aftermarket boost - Zuberman 07:45:09 08/14/15 Feb 9, 2013 · Hi, just wondering what inlet manifolds, either aftermarket or factory will fit onto the VG30DE(TT). Has anyone ever had pedal issues after deleting the booster ? I've had mine deleted for 5 plus years now with no issue . TT under plenum water line delete posted by DavidsZ on May 16, 2023 at 08:18 PM : Message: Thanks Itsa. I rebuilt the heads, fixed everything i could under the hood, put in better cams and this coolant issue is the only thing holding me up So basically, if you want to keep your EGR, like I do, the 94 plenum won't allow for the 93 or pre 93 EGR pipes to connect to the plenum. Location: FL Jul 20, 2011 · AIV's are very simple and easy to delete, no real consequences of cutting em away. that is what creates the input to the ecu that governs air/fuel ratio. 99 Tax: 0. the port underneath the plenum of the upper intake. but it is out, in one piece and without even going under the car. I then did an oil change and deleted the PCVs for good measure (into a catch can), the pipes were full of oil! I also swapped the spark plugs from Iridium BKR7EIX (which sit too far in the head) to NGK PFR6B11C gapped to 0. : Message Now im in middle of the plenum pull with hose bypasses where you delete everything under the plenum. Feb 18, 2014 · 300ZXttZMAN Posts: 7807 Joined: Mon Nov 22, 2010 4:07 pm Car: 1990 300zx Twin Turbo 5 spd pearl white. Mar 18, 2016 · 300ZX (Z32) General 300ZX (Z32) Technical 300ZX (Z32) Classifieds 300ZX (Z31) Forum Altima Forum Altima General Discussions Altima Coupe (2008-2013) 1st Generation Altima Sedan (1993-1997) 2nd Generation Altima Sedan (1998-2001) 3rd Generation Altima Sedan (2002-2006) 4th Generation Altima Sedan (2007-2012) Dec 14, 2024 · 0:00 Intro1:32 Intake Plenum Removal4:19 Fuel Rail Removal5:03 Rear Hardline Removal6:17 Exhaust Manifold/EGR Removal9:08 Alternator/Powersteering Pump Remov Feb 19, 2019 · I looked into the balance tube holes and there is oil in the plenum. I did: Plenum Coolant Line Bypass, EGR Bypass w/o Removal, AIV delete, Valve Cover gaskets redone, new injectors. i'm finding a of lot bits and pieces on how to delete Jan 7, 2020 · Blocking the Plenum Fittings & PCV Ports. Jul 1, 2012 · I am selling my Nissan 300zx twin turbo (z32 with VG30dett). Please take notice I think it went so well because I have downpipes already Z32 TT plenum pull So it appears I’m going to have pull the plenum and replace some corroded fuel injectors + a severed connector, is there anything else I should do while in there? This is a completely stock 1989 jdm z32 with 80,000 miles. Extend the evap canister purge vent line past the solenoid to a tee that you’ll install into the primary vacuum line at Video showing off the 2023 season Z32 bay setup with the VG30 and letting you know how I Relocated/Tucked:-Fuse Boxes-PS Reservoir-Harnesses-Fuel Filter-PTU/ Apr 23, 2010 · Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting. Follow Ups: Clutch booster delete side effects ?? - WazTTed 06:35:31 06/19/17 Expand user menu Open settings menu. Here is how I did it. Please note I recommend removing the restrictors from the front crank ventilation hoses when fitting this Delete Kit. May 16, 2008 · Things I would definitely delete: - Bypass and remove the plenum coolant lines. Disconnect any hoses going to the throttle bodies (39. The plenum removal isn't that hard. there is a link to a pdf (n/m) - KasbeKZ 16:25:16 02/04/10 link - KasbeKZ 16:37:37 02/04/10 Included 120k service, plenum deletes and reroutes, coolant + brake + clutch fluid flush, deleting the clutch lines and replacing with a shorter braided SS clutch line, replacing brake lines with braided SS lines. i found a write-up for it already, but im worried about any adverse effects that could happen. 00 Quantity: 1 Total Cost: $83. It just goes from egr at back of engine to the egr solenoid yeah? I forget which one is the egr solenoid on a TT. all you need to do is use to force and twist/rotate it about half inch so the bolt holes align up Mark Z32 EGR Removal Kit consists of 2 plates and gaskets to block the openings on the bottom of the intake plenum, a special bolt to replace the EGR valve exhaust fitting and a cap for the EGR vacuum line. 2. Jun 7, 2018 · Hi guys,so i found another boost leak,which seems to be where the gasket is for the plenum,My question should i do the plenum deletes while i have the plenum off and Subject: Please don't. $9. the diagram has been posted numerous times and is hosted on the 300zx wiki by CZP. I'm building a 450 kw zed motor and need to delete my pvc valves to prevent excess oil from feeding back into the intake plenum. Have you seen this? - Draker (Eugene, OR) 22:55:25 04/07/10 Jun 2, 2013 · Okay so I've been working on the TT a lot, here's my situation, I have done the following, under plenum coolant bypass, I think this has no effect. . New OEM plenum gasket, fuel filter and balance tube o-ring set Z1 hicas delete Volk RE30’s 16600-40P07 - TT old style injector 6 or 1 pieces 16600-21U00 - TT new style injector 6 or 1 pieces. From everything i've read the upper intake plenum is the worst of the bunch for the VG motors. My Daily: 2008 Frontier NISMO package, 4x4 Crew Cab. Some before and after pics: More Plenum removal hosted image and Coolant bypass delete - puddlejumpinzx 16:08:52 02/04/10 this was asked just a few days ago. 035. I plan to clean it thoroughly and paint it leaving all Jan 23, 2024 · In this video I delete the EGR, AIV and the Plenum Coolant lines on my Nissan 300ZX. I can’t seem to find any videos on EGR deletes. : Message: Put back the powdercoated plenum after injectors replace/upgradedid the deletes, coolant by-pass and the infamous EGR. Message: I just pulled my tranny and plenum and removed my egr. Free delivery No difference and actually in some cases you could argue that the EGR is better for the cars AFR. I was able to successfully delete in reasonable time without having to do any of the previous mentioned methods. Dec 16, 2012 · It can be done with the engine in the car but is difficult, easier with the plenum off and you could always do most the delete and just leave the actual egr unit in the back of the motor. 1990 Nissan 300zx Twin Turbo. Aiv Delete Egr Senoid Delete Egr delete has been done previously And Carbon canister Delete. hteyinf kcmx ymyt cdncvr bgmrk jdlnog jro kicu uoheklm mfqx zsuhk ctguf rpxdnk gpo zhtzfv