I have a 2001 Camaro SS M6 and I'm adding a Huron Speed turbo kit to my car. I have a forged LS2 with a LS3 top end and using the ZR1 3 Bar Map sensor.
I have an issue I'm trying to troubleshoot and need some help.
I upgraded my stock OS to the 3 Bar OS and did a base tune for start up.
I'm now getting the P1637 Generator L code. I'm not sure if it's related to the OS change or not. All was good before the major upgrades.
Has anyone else seen this before? I buzzed out the wire that goes from the PCM to the Alt and all is good, socket (pin) is also good, not pushed in, car only has 20,xxx miles on it.