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CEL and codes after new exhaust
I recently installed a new turbo-back exhaust system and noticed my CEL was on. I ran the codes and came up with P1509, P0113, P0118, and P1298(pending). These codes are as follows
P1509 - Idle control system short circuit
P0113 - IAT sensor circuit high input
P0118 - ECT sensor circuit high input
P1298 - IDM failure
The truck runs absolutely fine as far as I can tell. No sputters or surges or anything that I have noticed. I have searched extensively and found nothing. Has anyone heard of this or had it happen to them?
The truck is an '03, I've had it since april '09, currently 81,xxx miles, and the only code I've had come up since I've had the truck was p0404, an egr code.