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June 9th 2025

P1321 / CHEVROLET

Electronic Ignition System Fault Line

Notes:

June 9th 2025

P1321 / CADILLAC

Electronic Ignition System Fault Line

Notes:

June 9th 2025

P1321 / BUICK

Electronic Ignition System Fault Line

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June 9th 2025

P1321 / AUDI

Knock Sensor 3 Circ. Low Input

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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.