The car used to run fast, but now won't start without starting fluid and continual fluttering of the gas pedal. Floor it and the engine dies. The codes thrown were a 6 and 8 (IAT and coolant temp.) I found that the wires had come loose so I reconnected everything, but it still throws the codes and doesn't want to start. I tested the sensors with a multimeter and they are reading within mfg specifications. I am wondering if there is a ground problem or ecu problem. The ecu is pm6.

Thanks

 

change your IAT sensor...make shure its a known good one....had the same problem