We recommend Torque Pro
Manufacturer Specific Definitions for P1321
|Audi||Knock Sensor 3 Signal Too Low|
|Buick||Electronic Ignition System Fault Line|
|Cadillac||Electronic Ignition System Fault Line|
|Chevrolet||Electronic Ignition System Fault Line|
|Daewoo||Crankshaft position (CKP) sensor – incorrect signal|
|Gm||Electronic Ignition System Fault Line|
|Hyundai||IG.Coil.4 - Abnormal|
|Suzuki||Crankshaft Segment Malfunction|
|Volkswagen||Knock Sensor 3 Signal Too Low|
Help Us Help You
Please comment below describing your issue as well as the specifics of your vehicle (make, model, year, miles, and engine), and one of our mechanics will respond as soon as possible. For an expedited response within 24 hours, we appreciate a $9.99 donation via the payment button below.
We have not gotten around to publishing a technical guide specifically for P1321 yet. To escalate the priority of this guide in our production queue, we appreciate a donation. We will publish a guide within 30 days of payment.