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1997 Chevrolet Truck 4.3L Engine P0302 Fault Code: Diagnosis and Next Steps

Model: 97 Chevy Truck 4.3L Fault Code: P0302 Posted: 2018-01-01 18:12

I recently replaced the distributor, spark plugs, and ignition wires on my 1997 Chevrolet truck with a 4.3L V6 engine, but the P0302 diagnostic trouble code is still appearing. What should I check next to resolve this issue? The vehicle has been running intermittently, and I'm looking for reliable troubleshooting steps that focus on common causes of misfire on cylinder 2.

Related fault codes
P0302
Comments (2)
Anonymous 2018-01-01 19:09

Check the spark plug wiring and ensure proper grounding to cylinder 3. A weak or faulty connection could be causing a misfire.

Anonymous 2018-01-01 19:32

Agreed, also verify that the coil pack for cylinder 2 is functioning properly—some 4.3L engines have known issues with coil failure leading to P0302 codes.