Crewguy498
Junior Member
Bought a PCM from EBay. Unit came with correct mileage but wrong VIN. Truck runs fine but has engine light on. What is easiest way to get this corrected?
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Started out as cyl. 3 misfire. Found broken wires near that coil connector, on the PCM side. Once repaired the coil and injector was getting shut down milliseconds after cranking. We could not figure out how to test the PCM. We rolled the dice and purchased a PCM off eBay. Engine runs fine.You would need a really good scanner i paid like $3000 for mine can program ecm's I am suprised the truck runs without any programming but howcome you replaced the PCMProblem started
Would a HP Tuner interface allow me to alter the VIN?You would need a really good scanner i paid like $3000 for mine can program ecm's I am suprised the truck runs without any programming but howcome you replaced the PCM?
I think Alfa only writes VINs to the TCM, not to the ECM. I believe ECM VIN writes is a paid service thing.You can do it with the Alphaobd software