[Cocacoleuh]

I just replaced the ECU on my saab 9-3, numbers matched had someone from these forums with a techII come and program it and it'll run fine until it warms up to temp but then i'll get the code and ill lose boost(Only going up to about halfway) I can clear the pending fault while driving and it will continue back to normal and then eventually give me another check engine light, Coils are all Genuine Saab Mitsubishi, replaced the ionization module, haven't touched the spark plugs but they are NGK Iridium. Thanks!

 

[aerojon]

Welcome..Did they check that the software on the ecu was correct for your engine code..

 

[Mimmi]

What MY is your car and what P/N is old and new ECU?
Sounds like you have wrong ECU, because P0325 (00) is IDM signal lost failure and newer ECU can not handle older IDM (and vice versa).

 

[Cocacoleuh]

2006 and they were both 55353231 I had bought it off ebay

 

[Cocacoleuh]

Have no idea seemed like he did it with ease took him about 10 minutes to do so

 

[Mimmi]

So you have wrong sw.