Saab Link Forums banner

ECU swap 2002 95 AERO

4K views 7 replies 6 participants last post by  aireeca 
#1 ·
If I buy a used ECU, is it a drop in application or does it has to be re flashed or somehow keyed to a specific VIN?

A tag on my ECU: The VIN and 5382643 T7.7A03.

The used ECU in question: 5382643 T7.7A01

Is this compatible as a drop-in?[/B]

Continuing ECU problems with detonation. Here is the latest: The OBD screen shows the motor as a V6. We know the OBD unit is functional as we hooked it to another 2002 Aero and is calibrated to T-7 4 cylinder. Why the heck would the ECU give this information?

For more backround info, see "Blown enjine" under 95 problems"
 
#3 ·
we had a car at work that was a 4 cyl and on the tech 2 would show it as a v-6 also, and showed the knock counter and missfire counters for 6 cyl and was knocking like crazy on 4 of the cyls, changed the ecu from a car with a known 4 cyl ecu and it stoped knocking
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top