Perfomance Chip 95 to 92 swap Question
03-27-2015, 08:46 AM
#21
Melting Slicks
Thread Starter
basically many of the tables are the same or similar, but a small added feature (like the egr) in the newer car's application to run the program skews the addresses in which the memory is written. So your 92 rom (burned chip memory) has pertinent information written at specific addresses and the 93-95 will have the same stuff written in other memory locations. So the programming editor has a definition file that points to the correct place in memory to store the data when you change it. That's why the 'chip' has to match the car, but the ecm's are all swappable.
03-27-2015, 09:54 AM
#22
Safety Car
03-27-2015, 10:59 AM
#23
Le Mans Master
Mike,
You may be correct although Jerry's gaskets show 2 different numbers for 90-92 and 93-95 cams. The timing will still make a difference however.
The 93-95 may be different due to difference in nose of cam/vernier gear interface.
Last edited by Dominic Sorresso; 03-27-2015 at 11:12 AM.