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Old 03-07-2008, 06:30 PM
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Default Missfire on cold engine

Can anyone out there help me with a small problem I have with my 99 Diablo Roadster. I have popping and banging from the right exhaust for a couple of mins after a cold start with more water condensation than the left exhaust,then all is ok. All spark plugs check ok and no check eng lts also no diagnostic codes. Thinking it might be an injector but all is ok after a couple of mins when getting warm so is this possible. Worried about damaging the exhaust system. Oh by the way I have a Tubi fitted. Any help gratefully accepted. Thanks.
Ian.
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Old 03-07-2008, 07:22 PM
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Any check engine lights?
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Old 03-08-2008, 07:39 AM
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As I say, no check engine lights showing or any codes, missfire or otherwise on my OBD meter. Will change the spark plugs from one bank to the other today just to be sure but the plugs look ok. Thanks for your interest.
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Old 03-08-2008, 08:16 AM
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How often do you start your car. infrequency of driving may lead to more irregular start up and misfire. Doesnt sound like too severe a problem if it goes away after warm up.
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Old 03-08-2008, 09:20 AM
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Start the car a couple of times a week. But that should not affect it unless it had not been used for a long time. The backfire is sometimes very loud at times. I have owned exotics and race cars in the past but nothing has backfired as loud as this. But as I say it only does it for a couple of mins then all is fine as it gets warm. Have changed the fuel and added an injector cleaner. Wonder if the injector cleaner is the fault but I doubt it.
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