|
I have also seen the revolution sensor to cause this problem. This sensor sends a signal(eng crank case speed) to the ecu when ever the car its placed into a gear that will cause it to roll, i.e; reverse, or drive etc. The ecu then uses this signal to coordinate shift points, throttle dampening, cruise control, fuel delivery, fuel/air mixture etc. This puppy goes bad the ecu kind of gets lost sort of speak, causing missfires sometimes, erratic idle, your cruise cont light to flash after the system its desengaged due to pressing on the brakes etc. You will get no warning lights either. The only indicator will be the occasional flashing of the odd light. You can run a test on the system 2 ways. One way is to follow the hanes manual which its kind of confusing, or my way which is to start the car, place it in drive, get up to 15mph or so place trans in N, kill the engine, then restart it. This will run a self diag test on the entire drive train components. Any component fails it will flash a code via the ODD light. GL.
|