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#1 (permalink) Old 10-13-2008, 06:22 PM
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HELP - 1999 528iT code

I am getting the following codes

97 PreCat oxy sensor short to ground, Cyl #1-3
9A PreCat oxy sensor short to ground, Cyl #4-6
d6 vehicle speed signal not present
E3 Oxy sensor adaption limit, Cyl #1-3
E4 Oxy sensor adaption limit, Cyl #4-6
ee Misfire detected, Cyl #1
EF Misfire detected, Cyl #2
F0 Misfire detected, Cyl #3
F1 Misfire detected, Cyl #4
F2 Misfire detected, Cyl #5
F3 Misfire detected, Cyl #6

I have replaced the pre-cat o2 sensors, and nothing changed.

doing my research, I guess those codes could indicate a vacuum leak?

any thoughts? ideas?

joe

1994 325iC, 130k miles
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#2 (permalink) Old 10-21-2008, 11:05 PM
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This is a guess but before my CPS goes it causes some headache.
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#3 (permalink) Old 10-22-2008, 01:14 PM
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Ok, could be crankshaft sensor or camshaft sensor, I would go for camshaft sensor 1st. as for missfire on all six

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#4 (permalink) Old 10-25-2008, 11:46 AM
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Precat O2 Sensor Short to Ground

What did you decide was causing the following fault codes on your 528ITa:

97 PreCat oxy sensor short to ground, Cyl #1-3
9A PreCat oxy sensor short to ground, Cyl #4-6
d6 vehicle speed signal not present
E3 Oxy sensor adaption limit, Cyl #1-3
E4 Oxy sensor adaption limit, Cyl #4-6
ee Misfire detected, Cyl #1
EF Misfire detected, Cyl #2
F0 Misfire detected, Cyl #3
F1 Misfire detected, Cyl #4
F2 Misfire detected, Cyl #5
F3 Misfire detected, Cyl #6
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#5 (permalink) Old 10-27-2008, 08:15 PM
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hey. there was a vacuum leak in the crank case valve, along with several vacuum lines.

and the rear speed sensor went bad.

$1,000 gone !!

1994 325iC, 130k miles
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