Saturday, November 20, 2010

How to test ignition coil with ohhmeter?

I have a 1989 camaro v6 2.8and need to test ignition coil because it will shut down automatically after it heats up and change gears. People have told me to check the MAP sensor and camshaft sensor but my car i believe doesnt have any of these, it has an MAF sensor.The wires in the ignition coil are broken in some parts. Ive tried to test it but get 0 reading am i doin it right? What does it mean? And how is infinite reading displayed in the multimeter? ThanksHow to test ignition coil with ohhmeter?
let me answer the questions in reverse. infinite on mine is displayed as OL (out of limits). if you do not have the ignition on while you are testing you will not get a voltage the car is fuel injected and has an electronic ignition so it will have a crank position sensor. the map and map are two different systems really. the maf tells the computer how much air is flowing into the engine and the map tells it what kind of a load is on the engine.How to test ignition coil with ohhmeter?
My husband says %26quot;dump the factory coil and replace with a Mallory Hy-Fire or other high intensity coil for better performance and milage. Don't test it-replace it. The cost of the new one is less the trouble of the old.%26quot;How to test ignition coil with ohhmeter?
Ohm readings are great start but they do change with amp flow since the heat will change your readings.. I would replace the coil, you could see a good reading until warm. You could let it run until it dies then test you should get a OL (open circuit or infinity)How to test ignition coil with ohhmeter?
You say that the wires in the ignition coil are broken in some parts???

If you are talking about your plug wires then they definately need to be replaced because they will arc out and if you are talking about wires that connect to the coil then they need to be repaired also. I also agree with the mechanic who answered that it could be the crankshaft position sensor/engine crank sensor as I have seen them act up after a vehicle warms up. The car I had would start up fine and after warm up it would just die and after the engine cooled down it would start up again.
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