Question about Cars & Trucks
Plug not firing
Posted by Anonymous on
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Posted on Jan 02, 2017
You need to check the fuel delivery and compression of the engine. A miss is not always electrical.To test the injector power you need a noid light to check the operation of the injectors electrical pulse at cranking speed. If you find the light pulses consistently the injector can also be clogged as well.You need a compression tester to test the compression.You need to test all the cylinders since compression is now a matter of averages.No cylinder should be less that 10% of the rest. These tools can usually be loaned to you from a major auto parts store. Good luck :-)
Posted on Dec 09, 2008
SOURCE: No fire from coil to #1 cylinder
Ok since you did all that if you want to swap around fuel injectors taking note where you put cylinder 1 injector. Lets say you swapped it with cylinder 4 . Now if you get a different code say P0304 which is for cylinder 4 misfire then you know it is your injector at fault. These are wear items and should be replaced every 100,000 miles.
Also i would suggest if you dont want to do that is get some good high octane gas when you are completely empty and fill to 1/4 tank now put in Lucas Oil fuel injector cleaner and run the car till empty. Now fill up tank with high octane gas in see if this helps. Clear code after your second tank of gas and see if the code comes back. if code does pop back up then i would do the swapping of injectors as i stated earlier. I hope this helps and good luck with the diagnosis.
Posted on Feb 21, 2009
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