hi I have this car from a local garage with code
p0511 idle air control circuit
they have replaced the idle valve and tps, checked the wiring, had the ecu tested and repaired. there are 4 wires to the idle valve 2 white and 2 brown there is 12 volts on one of the brown wires and nothing on the other I suspect there should be 12 volts on the other brown wire also I have a ratch volts of .54 volts and I cannot reset it to the tps of .9 volt tried disconnecting the ecu, it is not on the dec to reset adaption not sure if that is missing from the dec or not possible any way also could do with the wiring diagram of the ecu ray