OK guys, I have spent ALOT of time searching. Lots of good info here, but the consensus with every 3.5 swapper I researched was that they did not get the EGR system up and running after a swap, prob because they were using non-EGR pre 04 motors. (And the EGR gunks up the IM, they prob prefer no EGR if they can get away with it)

My question is, has anyone here done a 3.5 swap with the 04+ EGR motor and swapped the EGR from the 04+ Servo style to the vacuum style used on most Gen 4's?

I have the 05 FSM and 97 FSM and I can not get the clear info I need to determine what to do. I really want/need my EGR to work. I don't want CEL's from the EGR temp feedback and I don't want to risk failing emmissions because I have no functioning EGR. In WA State, my 97 can fail OBDII scan, however they will dyno it as a OBDI (due to the 97 200SX SE-R SR20DE still being OBDI in 97 loophole thing) but I fear it would fail on a dyno.

So, does anyone have solid info about EGR inclusive 3.5 swap? I may just go ahead and try it anyway, but the more info I have the better!

BTW, I have searched alot, my wife is starting to think I am having an online relationship so please don't flame me if somewhere deep in the org archives there lies some golden bit of info I have overlooked, go easy!

 

http://forums.maxima.org/showthread.php?t=484768
http://forums.maxima.org/showthread.php?t=470530

Short answer: plug the IM port. Which ECU are you using? If all you want to do is rid yourself of an MIL, then read the provided threads and take my advice (plug IM port) and all should be fine if you're using the A32 ECU, which, from your post, that's what it seems like you're doing.

 

Well, I WANT a functioning EGR system on my 3.5 swap. Researching these forums has led me to believe that the 04+ Max 3.5 has external EGR, and deleting EGR on my 97 will cause the ECU to throw a CEL for EGR temp because it tries to open the EGR and witness a temp increase but that does not happen and bam CEL.

BTW, I am running a Fed AT 97 stock ECU

 

THX on that one, didn't see this one yet. Still looking for more along the lines of someone who did it. I was kinda thinking the same thing as krismax, I just want some "testimonials" if possible.

 

FYI, MIL = Malfunction Indicator Lamp, AKA CEL, SES light etc

If you didn't understand my post, then what it means is If you do not want a CEL, then take my advice. if you want it functioning for other reasons (aside from CEL) then, have fun.

 

Thx kinda already know the acronyms.

I also am aware that the 95 ECU is OBDI and will not throw a code for EGR if the solenoids are left connected, but the OBDII ECU doesn't like a cold EGR (or no temp sig).

Am I missing something? Are you saying the OBDII ECU won't mind the missing EGR temp signal?

Sorry for being dense, I appreciate the help!

 

95 Maxima ECU's are NOT OBDI.


Also, I'm not going to spoonfeed you, and by posting in this forum, it's implied that no one will. So, read the links I provided one more time, thoroughly.

Cliffs: Block IM & Exhaust man. EGR ports, leave connector as per this post Or, use an A34 ECU.

 

Block it off and use a '95 ECU and you will be just fine. My bro's '95 hasn't had EGR hooked up since the 3.5 swap, and he hasn't had any EGR codes (its been a year.)

 

I'd fail emissions if I did that. WA State connects to your ALDL connector to check for codes. It'd be pretty obvious that I had illegally downgraded my ECU.

 

Yeah just like mass with the whole readiness check BS, blah, just pay someone to take care of you, I already found a guy for next year. Just wanted to note though, that for the tailpipe sniffer part of the emmissions even without an egr any VQ will still pass NOx with flying colors.

 

That's the kind of info I am looking for. Thanks

 

Sorry to get a tad bit off topic, but..

Question about that, Im in FL and we havent had e-testing since like 00-01. Im curious, when you do an e-test with the sniffer, do they go WOT on it or partial or what?

 

Here in WA State they will dyno you IF you fail e-test because there is a loophole...Nissan still sold 1 car (1997 200SX SE-R) in 1997 that was OBDI, so technically they "CAN" elect to dyno test a 1997 Maxima. My 1997 Maxima failed the e-test (bad front O2 last year) so they just dyno'ed it. This year my car passed e-test with no codes so they did not dyno it. Clear codes are good enough for them. BTW, clearing your codes before you go test doesn't work. The ECU will report that there was codes recently, that's what happened to me last year.

 

but, I'm not familiar with your use of the term dyno. Enlighten me

 

He meant putting the car on rollers and running a physical test like for those cars that aren't OBDII.

 

So.... like a dyno then. Cool.

 

Yeah but they don't run the car hard by any means, so you don't get to find out anything cool . Yeah here in mass every 2 years you have to get emmissions tested, basically they do your 'e-test' thingy, which means they hook it up to the obdII port and check for codes + readiness checks (the reason you can't reset ecu, there's I think 5 different systems like evap, cat's, etc that need to go through there tests which takes a few hundred miles in some cases, then on top of that they hook it up to the rollers with a tail sniffer and check c02, hc, and nox emmissions, I sooo wish we had the oppurtunity to fail the obdII scan and then get a second chance on the rollers, pretty soon we're getting emmissions laws similiar to california