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Audi A4 2.8 1996 - Troubleshooting P1201, P1203, P1204, P1205, P1206 and P0401 Fault Codes with Misfire at 1500-2000 RPM

Model: Audi Fault Code: P1201 Posted: 2010-08-22 15:59

I recently encountered multiple fault codes on my 1996 Audi A4 2.8: P1201, P1202, P1203, P1204, P1205, P1206, and P0401. The vehicle exhibits a misfire between 1500 and 2000 RPM. These codes are related to fuel injector performance and engine efficiency. I'm seeking advice on how to diagnose and resolve these issues. Any insights or troubleshooting steps would be greatly appreciated.

Related fault codes
P1201P1203P1204P1205P1206
Comments (1)
Anonymous 2010-08-23 06:21

For the P120X fault codes, inspect the wiring harness, connectors, and circuits between the Powertrain Control Module (PCM) and the fuel injectors. For the P0401 code, check for EGR valve issues and any blocked exhaust passages. These are common causes in older Audi A4 models with 2.8L engines. Ensure all connections are secure and look for signs of corrosion or damage. Once resolved, clear the codes and test drive to verify improvement.