I'm planning to have a 96 ECU reprogrammed for my VI so I put the 96 ECU in my ride and got no codes thrown. I drove about 10 miles to my doctors office to get a checkup before coming in to work and no codes. At this point, I'm one happy **** because I'm getting, no codes. I decide to hit the highway to test the ECU at higher speeds and get up to about 75 and........I got a code. I'll clear the code with my Equus when I get home and run the highway again and see what I get.

The question for you all, Is this what happened you guys who have gotten codes with your 96 ECU or did you get a code right away?


I'm thinking that it may be my O2 sensor because I never change mine out when I get 0707 a while back. I just cleared it and kept on going. We'll see when I get home.

 

i have been testing one for about a week or so now. (96 ecu in my 97) i am also getting 07 07 i think it is: rear heated o2 sensor.

when i plug in the 97 i do not get this code ..! Im running a test pipe instead of cat. Things are going well. Just waiting on the money to fall fromt he sky now and then JWT upgrade !

Im excited I need to dress up the ecu when it gets back and toss on some JWT stickers or something! The magic box ! LOL

 

Did you get it after driving or when you started the car?

0707 is good then but I'll need to see if I can clear it for good or just clean the existing one tonight when I do my brakes.

Did the 96 Max have a rear o2?

 

it took about 7 miles of driving b4 the service engine soon light appeared.

dont know on the other, maybe the 96 had a sensor in the stock cat

 

ha, I thought the same thing- no codes for 2 days!! until the stupid thing lit up. now once I reset it, it comes back on within a day of driving. Its just the rear o2 sensor like you said

 

Yes.

(10 chars)

 

Just a guess but you might want to call the dealer to find out if the rear O2 is in fact different between the two years. They might put out different voltages. If it is, I would have to assume that you can just get a 96 O2 sensor and swap it out.

Like I said, just a guess.

 

Might just need to relocate the rear 02 before or after the cat to make the '96 ECU happy.

Can you guys confirm if they are in the same or different location?

 

I can check my Hanes manual when I get home unless Neal or any other 95/96 owners pop in here.

 

o2 sensor is on the cat.

I got my CEL while using a 98 ECU in my 96 right away.

 

O2 is on the Cat with 95/96, it's on the B-pipe after the Cat with the 97+. I believe the two also send different voltages as a signal....thus the CEL.

I'm sticking a 95 JWT ECU in my 97 soon - we'll see how that goes.

maybe someone could make a mechanical solenoid you attach to the side of your ECU that allows you to check codes then reset it with the push of a button.

 

Im just going to wire an inline switch to the cel bulb that way I can flip it on to diagnose and turn the light off after

 

Try moving the 02-sensor behind the cat, ie in the B-pipe.

Worked for 5th gens. switching from Cali-to-Fed spec..

 

Well, I checked the code and it was P0136/0707. I reset the ECU and drove in this morning (about 40 miles) and got no code so I'll give it a few days.

 

I know this may sound redundant, but a question for you guys running test pipes and B pipes on the 97 and up 4th gens: Like iansw said the rear oxygen sensor is behind the cat, did you guys have to relocate it to accomodate the new pipes?? My 98 has a short pipe with flanges on both sides, maybe 4" long between the cat and B pipe that has the O2 sensor threaded into it. This pesky little pipe is a pain in the azz, as it will be a neck down restriction point at 2.25" (I assume)if not removed or remade at 2.5" dia like the rest of an aftermarket exhaust. WTF do you do to get rid of it and still maintaing correct exhaust system length? I've ordered a test pipe,Y pipe and B pipe and plan to do thes mods as soon as they hit my door. If I remember correctly, the 2 front 02 sensors in the Y pipe are before the precats and the rear 02 sensor is the only one after any of the cats. I'm assuming it (and the computer) are tuned to be more sensitive than the front 02 sensors, since the air after being reburned by 3 cats should be pretty devoid of O2.

Thanks in advance,
SD

 

I should be getting my JWT ECU soon. It is a 96 manual ECU that did not trigger a SES light on Allgo's 1998 I30t. I hope I have the same luck.

My understanding is that the 95-96 rear o2 is totally different from the 97. Mine went bad so I was going to buy a 96 o2 and get a 96 ECU. I chickened out because I didn't want to blow the money if it did not work, so I got a new 97 one.

I am starting to wonder if I have a 95-96 exhaust on my 97 maxima. My exhaust is all messed up and hanging weird. I think my 02 is on my cat tooo........ hmmmmmmmmmmmmmm

 

It seems you won't get the code until you drive it for a little bit. I'm going to send it in soon but I want to test it for a couple more days. If the CEL doesn't come back I'll be happy. If it does, then maybe we can try to figure something else out.

 

To help us guys out that still have to get an ECU and would like to have the least chance of gettin a CEL, are you guys that have gotten a 96 ECU getting one that is dated from 11/95? car-part.com also has them thru 10/95. Also, can you tell by actually looking at the ECU what car it came out of (including SE/GXE and tranny type)?

 

I haven't found any dates on my 96 ECU but I went with a 96 because 97 was built in mid 96. It's just the luck of the draw for now. We all are getting the same code and 0707 isn't life threatening.

 

i dont know if this is correct info or not ??

I had a devil of a time getting a 96 MT ecu. I got sent 2 automatic ones before I actually got the manual. From looking at the ecu it appears that the Manual Tranny ecu's say B6 on them and the AT tranny ones say B7.

96 (11/95) Manual = B6
96 (11/95) Auto = B7


Now I don't know much about cars and what im saying may not be true. But after getting the 2 autos with B7 written on them on that orange sticker...........THE first thing I noticed about the manual is that it said B6.

This may be one easy way to distinguish a MT from a AT tranny ecu

 

You may be right because mine has a "B7" on it.

 

I searched and Searched on Car-Part.com to match up the codes I need to match to buy an ECU for the person I'll be swapping with a JWT ECU For. (He requires a new ECU before he sells me the JWT).

I can't find anything to match A18-K97

Should be 1995 MT, but can't figure out which one...

 

Did you find out when this persons Max was made? He needs to give you that info so you can give it to the junkman.

 

you really have to see if you get it with the JWT ecu. Some poeple do, some don't

the difference is the third (rear) 02 sensor. IIRC, you need a 95/96 and change the wiring a little bit

 

Yeah, I got the 0707 code again so my testing is done. If we decide to swap the rear ECU and change the harness will it be plug and play or is cutting required?

 

swapping the rear 02 requires changing one of the pin outs, iirc.. give delio a shout, I think he wrote it down when we were comparing fsm's.

 

Cool!

Thanks for helping B-money.

 

Here's the pinouts for the Sentra which look identical.
http://forums.maxima.org/showthread.php?t=231531