10-11-2014, 11:03 AM | #1 |
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HELP… Cant figure it out
I installed a JB4 a few days ago on my 08 135i auto an all was fine until yesterday. It Started throwing codes, jumping from map5 to map4. They somehow cleared themselves an the car runs fine again. Then today the service light came on an the car would shake like hell if I pushed the gas. After about 2 min of this the light went off an the car runs fine again??????????????
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10-11-2014, 12:13 PM | #4 |
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2a17: DMTL pump failure = fuel vapor pump. Typically does not impact performance, but can throw a CEL.
30FF: boost leak = could be a number of issues... Charge pipe, diverter valves, intercooler connections, ect. This would be my first guess considering your symptoms. Has the exhaust note become deeper? 2fc7: mystery code? Lots of questions about this one on the web, but can't seem to find an answer. http://procedetuning.com/BMW/n54/dow...des%208-17.xls |
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10-13-2014, 12:09 PM | #8 |
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Do a few pulls and post the logs.
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10-22-2014, 06:09 PM | #10 |
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Drives: F80 M3
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Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com
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Welcome to the wonderful world of piggy backs. Double check your install or pull it off, clear does and go for a test drive. Check for codes again.
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10-27-2014, 08:17 PM | #11 |
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It ended up being a tiny crack in the charge pipe, an bad plugs… I changed both an the problem is gone. Now I get misfires on cold start that go away when the car warms up??? o2 sensor maybe? Happened after changing the downpipes to catless...
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11-03-2014, 10:20 AM | #12 |
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Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com
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Check your plugs. Any codes?
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