2000 P0304 repeat issue
#1
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2000 P0304 repeat issue
I replaced the coil with a used one and car ran great for about a week. But now its back. Do you thing it was a fauly coil? Or perhaps an injector?
Fyi plugs are new.
Fyi plugs are new.
#4
2. Check the ignition wires if the miss does not move. they may look ok but may be cracked and causing the spark to ground out. I would spray the wires with water while the car is running as well as the coil and see if you see any arching or sparks.
3. If all appears ok you may need to do a compression test and see if your cylinder is not sealing properly (bent valve ). PM me if I can be of any assistance.
Best of Luck
#6
#7
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Used coil I got from buddy is fine. I didnt realize he swapped 4 to 6. His used coil went into 6. Did a test and 4 is now gone (not the used one I got). I guess I might as well order a new set and change em all.
#9
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This seems to be more serious. Changed coil 4 yesterday with new coil. Light went off right away. I guess after driving (prepping for emission test) and a 8hr cool down. Car is throwing p0304 again in pending. Car started rough this morning but drove fine. Going to have to take it into a shop as I have no time to diagnos further.
#11
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P0304 just went on its own again. Not showing as full or pending code now and car starts fine. Changing dead rear O2 today. I have until Tuesday the latest now to do a drive cycle and have car ready to pass emissions
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