Why does my car have a no spark light?
In this case you most likely have a failed ignition coil. That would explain why you have injector pulse and no spark. If the light does not flash, you still have a problem with both injector pulse and spark, suspect a problem with the ECM (engine control module).
What kind of wire makes a car not start?
The light green wire is the main power wire, the blue and brown wire are from the ecm and are the pulse ground signal wires that make the coils fire I found the problem. you must have a late production date 2000 as the wire colors match for the 2001 year model.
Why does my car have no fuel injector pulse?
I bet if you connected a test light to a fuel injector wiring connector while trying to start, you would find that you have no fuel injector pulse either. This is because the crankshaft position sensor gives the signal for both fuel and spark, and it is very common for this sensor to fail on this vehicle.
What happens when a spark plug is not firing?
If one spark plug is not firing properly, it will cause the engine to breakdown. The car may still move, but there will be an increase in the vehicle’s exhaust emissions. Reduced engine power and lack of acceleration are all attributed to a spark plug misfire.
What to do when your engine has no spark?
Insert a spark plug tester into the plug boot and ground it on a piece of metal on the engine. Finally, Have someone crank the engine and watch for spark. Remove one of the coils from the spark plug. Use an extra spark plug. A spark plug tester. Or even a screwdriver in the end of the coil.
What are the symptoms of a spark plug misfire?
Spark plug misfire symptoms will be familiar to the driver because their engine will appear to be stumbling for a few seconds and then recover its pace again, and it will go over this again. The number of times this occurs is largely dependent on the gravity of the misfire.
Where are the spark plugs on a General Motors engine?
The placement of each spark plug wire on the distributor cap is directly correlated to the engines firing order. For example; a standard V-8 General Motors engine has eight individual cylinders. However, each cylinder fires (or reaches top dead center) at a specific time for optimal engine efficiency.