Need to know what quad drivers are...
In the computer.
It is really non fo your consern
Will not bolt up and is not strong enough for the 3800.
Quad Challenge happened in 1991.
The Oldsmobile Calais, also known as the Cutlass Calais, was produced by General Motors from 1985 to 1991. In 1987, the Quad 4 engine was developed and the 1988 Calais was fitted with it. All?æof the Quad 4 14 engine types of the 2.3 liter version are interchangeable on the 1988 Calais.
Quad drivers are small chips that perform on off functions inside the Engine Control Module. If you have a code which states there is a Quad Drivers Error, you need to check the items that that particular Quad Driver is controlling. For example, the a/c compressor relay, or trans solenoids etc...
Quad Challenge was created on 1991-08-06.
the quad driver module is a component of the ECM. you must replace ECM.
Look at your error codes again. It should read something like "quad driver module FAULT" not failure. It is VERY unlikely that your quad driver actually died. It is the high power control system that is in your computer. So replacing it, means replace the computer. To prevent this the Quad Driver has all sorts of internal protection hardware in its design. The likely thing that is wrong is something the Quad Driver is connected to. And that The quad driver isn't seeing every thing correctly so thus the Fault. It also can fault if there is a wiring problem from the device to the quad driver. There are Test for each component. You should to to find out which is the problem. Consult your Shop Manual.
If a quad driver has gone bad it is necessary to replace the ECM. After replacing the ECM, drive the car on a bumpy road and note whether the check engine light comes on. If it does, fix the problem or you end up with a repeat QDM failure. == == == == There is no such thing as a quad driver module. There are quad DRIVERS in the ecm.
Relays are right behind the left side headlights - under the hood. I am looking for answer on nthe ECM myself...