High Idle Problem TPS voltage test procedure

Originally Posted by hpbadger

Thanks a lot..I will take a look back there and see if the tubing is faulty and report what it is.....also the QDM 1 fault I found out is for a Quad Driver Module.....not sure what it is so am researching....just know it is in the ECM.

hpb

Quad drivers are what control the injectors. Hopefully the QDM is not bad as these are not cheap! They are located on the drivers side of the car. One is mounted to the rear inner fender panel. The second is mounted on the firewall by the battery.