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January 5th 2026

P1556 / VW

Charge Pressure Negative Deviation

Notes:

January 5th 2026

P1556 / PORSCHE

Charge Deviations

Notes:

January 5th 2026

P1556 / BMW

"A" Camshaft Position Actuator Control Open Circuit Bank 1

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January 5th 2026

P1556 / AUDI

Charge Pressure Contr. Negative Deviation

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NOTE: Results from this database are the beginning of the diagnostic process, further investigation should be performed to confirm results before you begin repairs.