High Idle 1999 z24 2.4l
 

Throws PO122, PO105, PO108 car was run through a ditch and got wet. Do you think it is just sensor issues or has the pcm fried itself.:confused: Have cleaned electrical conections and dried them out, still throwing codes.

most likely one problem is causing all 3 codes to set. they share a common 5volt reference from the ecm. if all three are returning after clearing the codes; start diagnostics on the p0122 code. check the voltage reference wire, signal wire and grd wire for opens and shorts. If the 5v reference voltage is not correct at the tp sensor; see it is the same at the map also. If the wiring checks out, it may be ecm time as the 5v reference circuits are connected internally in the ecm

did the water get high enough to reach the ecm? if yes, pcm likely shorted internally. do the testing first to confirm its not a bad common wire