cyl1 misfire
#1
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cyl1 misfire
I started getting a sporadic CEL, cyl1 misfire, over the last few weeks. Probably 2 or 3 times, after letting the car idle from cold in the morning.
I took it in to the dealer and he has not found anything wrong and cannot make it happen again. He offered to change either the spark plugs or the charge packs, which are apparently also per cylinder. Any advice?
Thanks!
I took it in to the dealer and he has not found anything wrong and cannot make it happen again. He offered to change either the spark plugs or the charge packs, which are apparently also per cylinder. Any advice?
Thanks!
#3
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Dealer says the plugs looked fine but I requested new ones regardless. I thought about getting new charge coils too but apparently those cost a bit more. I am a little concerned about the fact that I saw this repeatedly on one cylinder and never on others, but who knows. I will see when I get it back.
#4
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Valves adjusted properly? How many miles on the car? Throw out as much info as you can about the car and some of the more knowledgeable guys are here may offer some advice.
#6
Yeah I'd swap the coilpack from cyl 1 and 2 and see if your misfire code comes back on cyl 2. You can do the same with plugs and injectors (but only one at a time so you know what's bad). If the misfire follows the swapped item, then that's your culprit.
All of those items are easy to swap on your own with basic hand tools... Metric Allen wrench, 3/8" drive ratchet, 5/8" spark plug socket w/ extension, 10 mm socket... That's about all you need.
All of those items are easy to swap on your own with basic hand tools... Metric Allen wrench, 3/8" drive ratchet, 5/8" spark plug socket w/ extension, 10 mm socket... That's about all you need.
#7
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The dealer said the valves looked perfect and could not get the code to fire again. So I had them do the spark plugs, since those are fairly wearable either way. I get the car back, and within a day the code fires again! Then it disappears the next day. How does that even happen, I thought CEL codes stayed permanently until explicitly cleared.
Either way, it is back once again. No other symptoms at all. I think I am headed back to the same dealer, hopefully they will cut my bill some slack after the first round did not solve the problem. Swapping coil packs between cylinders as a test sounds like a great idea. I might give that a shot if I am feeling adventurous.
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#8
Seems like an injector issue, have you let the car sit for extended periods of time? Like a month or more at a time?
#10
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I still have no idea how the code cleared itself at one point, but at this point it sure seems like the coil or injector is the culprit.