QX4 ECM question

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
ceh37205
Posts: 2
Joined: Thu Jan 07, 2010 12:48 pm
Car: 2001 Infiniti QX4

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My ECM was fried when the idle control valve malfunctioned. I found a used ECM appropriate for it's manufactured date and after connecting it, the vehicle will not start. Do I need to re-program the key? Any help is appreciated.


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t_b0ne3
Posts: 49
Joined: Sun Nov 15, 2009 9:09 pm
Car: 2002 Infinti QX4 4wd My first Nissan was a 1985 720 4wd P/U. My other ride is a 2005 FXDWGI

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Does the truck crank and just not fire or doesn't it do anything with your key? If it cranks but will not fire it is most likely a code mismatch as you stated between the key and the new ECM?

ceh37205
Posts: 2
Joined: Thu Jan 07, 2010 12:48 pm
Car: 2001 Infiniti QX4

Post

It cranks but does not fire. I'm taking it to the dealer to have them regester the key with the ECM and dump all older keys. Hopefully that wll work. Do you know any other way to accomplish this other than the dealer route?Thanks.


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