So I have a 06 supercharged cobalt and I'm swapping the motor with and 08 turbo one I have the turbo motor engine wiring harness and pcm do I need the interior wiring harness to because my plug for the interior wiring harness doesn't match up to the pcm of the 08
You will need to get the ECM flashed and married to the other modules in the car. BCM , theft deterent and others. Hope you also grabbed the HO²s because they are also different.
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