Want this question answered?
What happens depends greatly on which module fails. If the engine control module (computer) fails it may cause the engine to run poorly or not at all. If the ignition module fails the engine won't start.
The ignition module will send a signal when the key is turned. If the module is no good the signal is not sent to the other ignition parts,thus not allowing the car to start
sounds like the ignition control module
Could be a coil or ICM, Ignition Control Module.
It can.
There are none. Ignition timing is not adjustable. Ignition timing and spark advance are handled by the engine controller module and the ignition control module, with inputs from various sensors. The engine controller is located by the passenger kick panel. The ignition controller is the thing the ciol pack mount on...it runs about $110 new. The ignition controller is often the cause of rough running, or idle problems as the spark advance function tends to crap out on this model of DIS ignition. Producing a constant error code, and therefore a constant check engine light.
Since the compression is good I would not expect it to be a burnt valve. It could be timing if the timing chain has excess play. I would also check the ignition module and the engine control module. We had a 1986 Chevy Celebrity that had an ignition problem that cause it to run badly and backfire. The service engine soon light was blinking but not posting a code. We changed the engine control module and it fixed the problem.
dead battery, or a bad ignition control module inside the distribureator.
it can, but i would check the ignition control module first....then the crank sensor.....
I've reading alot on this latley, and seem to be having the same problem. I believe it can. I am going to replace my ignition control module tonight and see if my injectors then start working on my K2500 7.4
If a defective ignition module, (or bad plugs/ wires) causes a misfire condition, one or more plugs won't fire. The uneven power pulses cause engine shaking.
bad ignition coil, bad plugs. bad plug wires, bad ignition control module........