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Help with Charge Pressure Control: Negative Deviation...

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Old 05-08-2003, 07:52 AM
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Default Help with Charge Pressure Control: Negative Deviation...
DTC 17964.

Car is 2000 A4 1.8T with GIAC version P09.
I had a lean code so dealer replaced the MAF.
I had a overboost code so dealer replaced the N75.
I now have the Negative Deviation code so I replaced the 710N bpv with a new 710N. Code has come back with the new bpv.

I'm wondering where to look next. Any idea would be a big help.

Thanks,
Kirk
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Old 05-08-2003, 08:44 AM
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Maybe look for a loose or split hose. Boost leak IMO
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Old 05-08-2003, 12:02 PM
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Default Had this code when a turbo hose popped on full boost...
going 125 mph, not a pleasant feeling. Check your hoses.
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