S2000 Under The Hood S2000 Technical and Mechanical discussions.

Valves replaced, still throwing CEL's

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Old 11-12-2012, 02:40 PM
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Originally Posted by sam_spider
No, I didn't.

The dealer kept the car for a few days after replacing them to be sure the codes wouldn't come back, so I don't think they were ever properly checked. It solved the problem, so I never thought to ask at the time.
this is probably a stupid question. but do you think the injectors had anything with the bent exhaust valve?
Old 11-13-2012, 05:35 AM
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No.
Old 11-13-2012, 10:21 AM
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were you running rich? did you ever get a p172 CEL?

when you say your idle was lumpy...how bad was it? did your car ever stalled out when coming to a stoplight?

did they replace all 4 injector?

glad you fixed your issue
Old 11-13-2012, 04:59 PM
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Originally Posted by s2000maniac
Originally Posted by sam_spider' timestamp='1352733390' post='22145212
No, I didn't.

The dealer kept the car for a few days after replacing them to be sure the codes wouldn't come back, so I don't think they were ever properly checked. It solved the problem, so I never thought to ask at the time.
this is probably a stupid question. but do you think the injectors had anything with the bent exhaust valve?
Nope. Injectors were the issue all along. Although I did indeed have a bent valve, it wasn't the cause of the problem or the codes/misfire.
Old 11-13-2012, 05:01 PM
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Originally Posted by silvermonster
were you running rich? did you ever get a p172 CEL?

when you say your idle was lumpy...how bad was it? did your car ever stalled out when coming to a stoplight?

did they replace all 4 injector?

glad you fixed your issue
All I ever got were misfire codes, 0300 etc.

Nothing crazy, you could hear the misfire at idle, intermittent burps is best I can describe. Car never stalled at any point.

Yes, all injectors were replaced.

Me too, when the CEL came back on (500 miles from home) I was highly annoyed, luckily the dealer stepped up and made it right.
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