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BMW 3-Series (E90 E92) Forum
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Running lumpy when idle and running rough
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10-26-2019, 02:15 PM | #1 |
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Running lumpy when idle and running rough
Hi,
Hope I've put this in the right place. I have just purchased a E90 m47 320D It initially was a non runner as it didn't crank. I since found out that the previous owner had put a standard battery in. I have now put the correct battery in and resynced cme/DMS with ista d (which I'm new too) It's now starting and will run but under idle upto 1700k revs it's lumpy and shaking the whole car and struggles to stay on. I have rev'd the engine to get it to normal temperature and it sounds better after it's been left sitting for a few weeks. It first had white smoke and multiple error codes. Whilst I have cleared them some have come back straight away with some additional ones. If possible I wondered if I could get a point in the right direct. The errors I have I have scanned with Carly although I do have ista. Here is the errors I have so far. Engine / Motor Fault Code: 004A63 Fault Explanation: EWS-manipulatio Fault Code: 0044CC Fault Explanation: Boost pressure plate Fault Code: 004212 Fault Explanation: Glow plug cylinder 1, control Fault Code: 004222 Fault Explanation: Glow plug cylinder 2, control Fault Code: 004232 Fault Explanation: Glow plug cylinder 3, control Fault Code: 004242 Fault Explanation: Glow plug cylinder 4, control Fault Code: 004B10 Fault Explanation: Smoothness regulator Fault Code: 003FF0 Fault Explanation: Air flow sensor Fault Code: 004530 Fault Explanation: Boost pressure control, control deviatio I think the glow plugs were from when it tried starting and may not have been cleared correctly. I'm wondering if there is a misfire or maybe the air mass sensor that's the issue. Could anyone give me any ideas. I'm aware I might have to clear the codes and read them again. |
10-26-2019, 02:46 PM | #2 |
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White smoke in a Diesel engine means there's oil burning or incorrect fuel
, check fuel filter, if it's clogged the injectors won't have the correct pressure so check the fuel rail pressure and maybe pull a injector to see if it's dirty. Just Remember your torque specs while putting everything back. And careful around the fuel rail very high pressure
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