Good evening.

So I troubleshot my 2001 Nissan Maxima to find out I have the normal burnt chip from the Iacv. So I sent it off to Upfix to get the chip replaced and they sent it back and seemed it unrepairable, but it actually came back in worse condition then when I sent it. Burnt circuit traces and all, they demolished it.

I searched for a replacement and ordered one from flagship 1, they took all my information and money and finally two weeks later I get a glass blasted ECU. During unboxing I heard a familiar rattle inside, so I opened it and low and behold the same chip is burnt in this ECU. So I package it up and send it back to them, but right away they tell me I voided their warranty by opening it to see what was rattling around and won't help me what ever.

So I still have a broken car and no working ECU. Yes it will run and drive with the old tried to repair one but not super well.

What the hell does a person do?

 

ebay or junkyard and program with NDS2

 

Does the part number have to exactly match or what is the story, I have the A56-Q78 Z99 ECU? It's not an easy one to find.

 

Only if you have tractional control, I believe. I just use any ECU. Bingo bango bongo.

 

Thanks for the input! Anyway to confirm that for sure? Mine is 2001 anniversary edition 5 speed manual.

 

manual definitely doesnt lol. Auto ecu should work, but of course have CEL.

 

I had nearly the same issue when my ECU showed signs of heat damage inside. Before replacing anything, I tested the board connections using a wet bench setup at work, and it really helped confirm which traces were cooked. If you’ve got access to that kind of setup, it can save you a lot of time before pulling parts.

 

The Classifieds is somewhere I WOULD LOOK FIRST! So many people parting ways with their 2000-01 Maxima(s)....If not then the salvage yard is a source. I say several 2000-01 in SA pick and Pull I can find 1 or 2 for you if needed.