Weird PCM question
So here is my question: Can I simply plug the PCM I got with the L33 into the 02 Z28 wiring harness to read mileage or anything else thru the diagnostic port? And will doing so cause any damage to the donor car when I plug its PCM back in?
If there is a better way to read the L33 PCM ????
Since the LS1 in the z28 has over 100k and is rated at the same HP as the L33, I'm trying to determine which would be better for my swap. Hope that all makes sense.
What are you going to read it with? You need something that will read the vehicle that the PCM came out of. And the mileage is not stored in the PCM, the only good reading the PCM will do you is give you access to the donor vehicles VIN which you can research on your states vin search (if thats available) or run a carfax on it. Thats assuming they gave you the matching PCM. You should be able to find the last several digits of the vin stamped on the engine somewhere to see if they match.

