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Xoutpost server transfer and maintenance is occurring.... |
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#51
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2011 E70 • N55 (me) 2012 E70 • N63 (wife) |
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#52
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SOLVED: MAF was at fault.
New intake boot and MAF arrived from FCP. Installed the intake boot, performed smoke test, found no additional leaks. Started engine, still ran terrible. Installed new VDO MAF mass airflow sensor, started engine, immediately ran better. I have driven about 100 miles on since the MAF replacement and no MILs or drivability issues to date. Conclusion: even if there are no codes for MAF and the live data seems to be responding correctly, the MAF may still be at fault. Disconnect the MAF before starting the engine, then drive the vehicle. If there is a change then the MAF is likely at fault. Thanks 80stech for the tip.
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2003 E53 X5 3.0i 5MT 2003 E53 X5 4.4i |
#53
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Quote:
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2003 4.6, esotril blue, over 215,000KM. Every previous owner failed to keep up the vehicle maintenance. Restoration project. |
#54
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Cheers!
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#55
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Quote:
This CAN indicate a bad MAF...but a vacuum leak is more likely if the car runs better when unplugging the MAF.. Happy to see you fixed it and thanks for coming back to post a follow-up...
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'03 530i - manual swapped - 425k miles '06 325Cic auto 115k '05 X5 3.0 auto 158k '99 E39 528i 5-speed 130k |
#56
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Yes, the conclusion isn't really accurate but good to see it fixed and good to see the follow- up post!
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
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