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Home >> Saab >> 2001 >> 9-3 Base, 4D Hatchback, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (TRIONIC T7 Fuel Control System) >> Fault Diagnosis Fault Codes >> DTC P1303: Cylinder 3 Misfire Detected. Catalyst Damaging. >> Diagnostic help

Diagnostic help

WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

If any other trouble codes have been generated, check whether fault diagnosis should be started on any of them first. Read Freeze Frame and change spark plugs.

Then check the compression, ignition and injector for the relevant cylinder.

Functions in the diagnostic tool related to the fault:

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