A4 ECM for T56 car

Im replacing my ECM, and found one for an A4. I was wondering if it will be compatible with my car being how it has the T56. the ECM is for a 93 and my car is too. Thanks in advance for any insight you might be able to provide.

Idle speed is different between the two transmissions and there will likely be some other subtle things. Better to get the one for your setup, IMHO.

The PCM is identical. There are a few minor differences in the tune.

Rich

Whats the difference between the PCM and ECM?? Isnt the PCM on the back of the seeedo Cluster?

would an ecm form a lt1 Vette with a M6 tranny be identical too??

Whats the difference between the PCM and ECM?? Isnt the PCM on the back of the seeedo Cluster?

The computers changed from ECM (Engine Control Module) in 1993 to PCM (Powertrain Control Module) in 1994 and later (adding electronic transmission control). Though 1993 and 1994 were both OBD-I, they used different computers. 1993s used the replaceable chip type (PROM), while 1994 and up used flash memory for storing the program (EEPROM).

would an ecm form a lt1 Vette with a M6 tranny be identical too??

94-95 Corvette PCMs are the same as the 94-95 F-body PCMs.

i was scanning my car with a snap-on solus pro, and it said my oil temp was -32. Do these cars even have oil temp sensors??

i was scanning my car with a snap-on solus pro, and it said my oil temp was -32. Do these cars even have oil temp sensors??

No. Disregard.

Got the ECM. Just put my old prom in, and it's working good so far. Since i put the old prom in, do i need to have it tuned? I know if i used the A4 prom i would.