Originally Posted by
CL770
Hi
The "PCM Coding Incorrect" may be related to the engine tune. If the wrong flash file version was loaded it may not be fully compatible with the existing SCN coding in the ECU. This would generate that error. Ask your mechanic friend to check the file version loaded in the ecu and report back. I can look it up to see if it's correct or not.
battery dying can cause coding errors.