What would cause all of these to come on? 108 map sensor voltage HI, 123 TPS voltage HI, 505 IAC motor circs, 113 intake air temp voltage HI. Idling at 2100 in park, 1100 in drive. What could this be?

 

P0108 Map Sens Voltage Too Hi
P0113 Intake Air Temp Sens Voltage Hi
P0123 Throttle Pos Sens Voltage Hi
P0505 Idle Air Ctrl Motor Circs


I would start with a new PCM sorry to say. You can pick em up pre-flashed on Ebay and ready for bolt in for cheap.

 

yea too many sensors at once to point anywhere else sorry to say

 

Also ck for any wires that maybe pinched to ground too. This also may sound crazy, unplug the clockspring. Its on the same circuit as the TPS sensor.