ECU question
06-14-2008, 12:23 PM
#1
Senior Member
Thread Starter
Join Date: Dec 2005
Posts: 301
ECU question
Hi, long time no post - such is the reliability of the maxima!
Anyway, amazing as it may seem, I have a bad ECU. It's been trowing up codes P0400 and P0443 for about a year now and all my testing shows the EGR and purge components to be good. I replaced all the vacuum hoses to no avail. I finally broke down and took it to the dealer. $275 later I had the diagnosis - bad ECU.
I removed the ECU and sure enough there was bad corrosion down one side of the PCB where a water leak had gotten in a few years ago. Aside: this was due to a blocked drain vent on the AC/heater/Air system. If you get under your car and look in the middle of the fire wall, you'll see a rubber drain tube. Stick a bit of wire up and unclog all the gunk. When you pour a pint or water on the windshield it should drain through here.
Anyway, several attempts to patch the corroded PCB traces have failed and now I want to get a new one. $800 from Nissan is extortion for maybe $50 worth of chips (I'm an EE) and a search on the net found www.ninfinity.com who have used ECU's for about $175.
So here's my question:
My ECU has P/N: A18-E65-EZ7, ninfinity has P/N A18-E65-EZ2. What do y'all think the chances it will work in my max????
Anyway, amazing as it may seem, I have a bad ECU. It's been trowing up codes P0400 and P0443 for about a year now and all my testing shows the EGR and purge components to be good. I replaced all the vacuum hoses to no avail. I finally broke down and took it to the dealer. $275 later I had the diagnosis - bad ECU.
I removed the ECU and sure enough there was bad corrosion down one side of the PCB where a water leak had gotten in a few years ago. Aside: this was due to a blocked drain vent on the AC/heater/Air system. If you get under your car and look in the middle of the fire wall, you'll see a rubber drain tube. Stick a bit of wire up and unclog all the gunk. When you pour a pint or water on the windshield it should drain through here.
Anyway, several attempts to patch the corroded PCB traces have failed and now I want to get a new one. $800 from Nissan is extortion for maybe $50 worth of chips (I'm an EE) and a search on the net found www.ninfinity.com who have used ECU's for about $175.
So here's my question:
My ECU has P/N: A18-E65-EZ7, ninfinity has P/N A18-E65-EZ2. What do y'all think the chances it will work in my max????
06-14-2008, 01:08 PM
#2
www.car-part.com
http://jimwolftechnology.com/wolfpdf/ECU-ID.PDF
I've used dissimilar ECU P/N 's in my 95, shouldn't be a problem as long as the Fed / Cali and tranny type are matched.
http://jimwolftechnology.com/wolfpdf/ECU-ID.PDF
I've used dissimilar ECU P/N 's in my 95, shouldn't be a problem as long as the Fed / Cali and tranny type are matched.
06-14-2008, 04:43 PM
#3
www.car-part.com
http://jimwolftechnology.com/wolfpdf/ECU-ID.PDF
I've used dissimilar ECU P/N 's in my 95, shouldn't be a problem as long as the Fed / Cali and tranny type are matched.
http://jimwolftechnology.com/wolfpdf/ECU-ID.PDF
I've used dissimilar ECU P/N 's in my 95, shouldn't be a problem as long as the Fed / Cali and tranny type are matched.
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