how do you indentify an ECM. i have one that i got off a guy for like $50. he said it was from a z28. its got a little black box mounted on top of the plastic mounting thing. is it possible i have one from TPI car?? are there any numbers on the box or do i have to tear into where the PROM is? any info is appreciated. thank you for allowing me to post.

 

Look for the Service Number on the ECM. If the label is still intact it will be on that. If no label then open it up and post the 4 letter code on the silver label of the EPROM.

RBob.

 

sorry for the wait. i had some computer issues that needed to be dealt with. here are all the numbers i could find on the ecm. this is the silver box that is attached to a metal bracket. 0 280 215 001 then says BOSCH the next number on it is: 141080620. now for the numbers on the ecm itself. the little white tag attached to the cover plate had this number on it: 16050021. it had a barcode on the inside when i took off the plate this is the number from it: 255001100275014. hope this helps you. i have no idea what i've got. thanks for the help rBob