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08-27-2014, 02:35 AM | #1 |
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2009 330i - Initial misfire on cylinder 3 only
Hi Guys
I am hoping somebody here will be able to help me out. I've recently bought a 2009 330i about 4 months ago. Not soon after I seem to have a few problems with the engine. When I first start the car I can feel the car misfiring and the CEL comes on after a minute or so. Then after about 5 minutes the misfiring seems to stop and the CEL goes off. The engine also has no problem whenever I start up the engine later on the same day, the problem only exists on the first start up of the day. I have also noticed that the CEL is not there on start up on a warm day, even though I can feel a few misfires but they are just not as violent/often. I've had the car taken into a garage and the fault codes that have come up are 1) Misfire on cylinder 3 2) 30E9 - Nitrogen-oxide catalytic converter, ageing Since then I have replaced everything on cylinder 3 (injector, decoupling element, sparkplug) but unfortunately the same problem is still there. Here's a video of the issue I have at start up. |
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