I'd replace the ECM (electronic Control Module). These are often the problem on older GM vehicles. It's fairly simple to replace. It's located directly under the distributor cap and rotor. Costs about $60 for the part.
Spark as in the ignition or spark as in not starting? Please be more specific and we will try to help you.
ignition switch The TDC Sensor is probably dirty, remove it and give the tip a clean, also the connecter.
map sensor
Change crank shaft angle sensor ul get a spark
what are you trying to measure and with what type of meter? generally we check the module with a spark tester. if there is no spark with the spark tester we check the kill wires and any safety switches that may cause a no spark issue and if all that still shows no spark then we replace the module.
I don't know I'm also still searching the answer for this question.
== == check that you are getting power to the distributor. i am assuming you are talking about a earlier model vehicle Have you checked the ecm relay? maybe the pickup coil assy.
I would replace the ignition module in the distributor.
It happens. Just b/c you have a spark doesn't mean it's hot/strong enough to reliably ignite the fuel.
Control Module depending on type controls the engine functions, transmission, ignition, etc. (test does not specify "Ignition Control Module")Starter solenoid would be the most likely choice because on older vehicles with points ignition, the solenoid has a Resistor (Run) post for and an Ignition (Start) post, but now we don't need resistors, but it still has to do with ignition!Coil supplies voltage to the spark plugs = ignition again.Spark plug creates the gap for the spark that the fuel needs to ignite, ignite = ignition.
A CDI, or Capacitor Discharged Ignition is a system that is linked to the ignition of some petrol engine driven vehicles. Its purpose is to store an electrical charge that is discharged through the ignition coil and thus increases the power to the spark plug/s for a very powerful, high-energy spark. This prevents fouling of the spark plug/s. A CDI can be disconnected in some vehicles and the engine would still run, but with a less powerful spark to the spark plug/s.
your coil packs are bad. this is not cheap to fix. sorry.