I do not own this vehicle:
I'm having trouble diagnosing an ignition problem with a '98 Olds Bravada. After using a tutorial I found online on how to diagnose a faulty ignition system, I'm still at a lose. By my calculations, it seems that the problem is somewhere in the CPS (Crankshaft Positioning Sensor) circuit/logic. The CPS was changed out (not by me) on a whim to hopefully correct the issue. I didn't work. So now I'm trying to find out where the fault may lie.