My friends civic was having trouble starting and would die at stops so i took a look and his IAC valve was completely clogged and throttle plate was coated in grime so i cleaned out the iac valve and throttle body real good and then hooked everything back up properly and then it started fine and drove around the block. We go to start it a little later and the CEL comes on and its running really rough and then dies as we pull out of the driveway on the way to oreillys. He scans it a few days later and we get:
P0118: Engine Coolant Temp sensor high voltage
P0108: MAP circuit high input
P0122: Throttle position sensor circuit low input
P0113: Intake air temp sensor high input
I doubt that any of the sensors themselves are faulty since these all popped up all at once, it must be caused by something else right? I havent been back to double check but know i hooked everything back up and had another even more experienced friend there that confirmed that. Anything specific i should look for when i go back? Or any ideas what may have caused this?

 

Make sure you did not swap some sensor connector (TPS, MAP, IACV, ECT, IAT). If you did, there is a risk is that the ECU is now blown.

Also verify that all connectors are full seated and that no connector pins are bent.