Anyone ever get a quad driver code on 95 Riv? If so what fixed it? I changed EVERY eletrical part on the car save for the wire harnes. Even changed some parts more than once.


Dave

I had a Quad driver 1 code and changed out the boost control solenoid and it fixed the problem. which quad driver code are you getting. quad driver one controls the boost solenoid evap purge solenoid and I believe the tc solenoid

I was just gonna make a thread about this...Last night I my service engine light came out, so I pulled into a parking lot and plugged in my scanner...and it pulled a code for the "Quad Driver Module QDM 2 Fault" Now This code has popped up before and I had the boost solenoid changed at Buick back in the summer of '06....can it be that it went again after a year and a couple months? WHat would cause it to keep failing?

Also using Seafoam in my Riv the night before this happened wouldnt cause this code would it? I only added it to my gas tank as per the directions on the back of the can.

BCS's do seem to go more frequently than we'd like to admit. I think the QDM 2 is the BCS/Evap/TCC.

Is this something that can be easily changed in the driveway, or does the blower have to come off and various other things to access it?

Bad news .. DTC 1650 QDM2 is Shit and TCC soleniods only.

Hey I'm having the same problem but I'm having a quad module 3 error along with cam/crank error (99 total) so I changed the cam sensor and it went down to 3. What causes the quad 3 on a series one?