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.

[bldavis11]

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

I had to remove the hose to see where the problem areas were. Even with a flashlight I wouldn't have picked them up. The whole hose needs to come off the car and be inspected. Personally, I would just replace the sucker while you're at it. It's going to go bad at some point and likely sooner rather than later.

[hpbadger]

Originally Posted by Jeffvette

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.

Thanks very much for your help. I will try to locate the quad drivers. Is the rear quad driver mounted to the rear surround?

hpb