P0302 code with good coils
#1
P0302 code with good coils
I know the typical answer, change plugs/wires/coils but I just pulled the coils and wires off and checked them and they're all showing the right resistance. The plugs all look good and are relatively new so unless a plug would fail internally its not that.
2 questions, is there something else that could fail in a coil that the simple resistance check in accordance with the manual wouldn't show the failure?
2, how do you check things upstream of the coils that could cause a misfire? Obviously a broken wire could cause it but without pulling the wires all the back and looking for breaks, where do I check the continuity of those wires?
The car was running when the code came in so I don't think its a plugged fuel injector but I'm going to pull those apart and clean check them next weekend.
2 questions, is there something else that could fail in a coil that the simple resistance check in accordance with the manual wouldn't show the failure?
2, how do you check things upstream of the coils that could cause a misfire? Obviously a broken wire could cause it but without pulling the wires all the back and looking for breaks, where do I check the continuity of those wires?
The car was running when the code came in so I don't think its a plugged fuel injector but I'm going to pull those apart and clean check them next weekend.
#2
And this can't be tested with a meter alone nor can it be visually inspected (the "white patch" rumor).
You can swap coils between the two rotors and see if the problem carries over (which will generate a P0301 code instead) to help narrow down the faulty component.
But most people here don't like troubleshooting and throw a bunch of money at random components until its "fixed", so that's why you hear the "change plugs/wires/coils" repeated over and over.
#3
Once again you help out. I love you Thats good to know about the ignitor. I have the BHR kit on order but figured I'd troubleshoot anyway while I'm waiting. I got all the right readings and it scared the **** out of me since I'm moving in 2 weeks and it'd be nice to drive my car to the new place not tow it lol.
I haven't swapped stuff because I haven't wanted to hurt the cat plus its a bit of a pain to get it started right now. I'll hold off and come back if I have more problems once the new coils come.
I haven't swapped stuff because I haven't wanted to hurt the cat plus its a bit of a pain to get it started right now. I'll hold off and come back if I have more problems once the new coils come.
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09-26-2021 02:59 PM