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1997 Chevrolet S10 4.3L MIL Lamp on
Posted to GM Driveability on 3/29/2000

New customer, new otc pathfinder, new problem; dtc p0420. Cleared code and checked on scope, high kv, suspect cap and rotor or coil. am I on right track looking at ignition? I checked the archives for similar problems and found a possibility of a bad co...

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car Vehicle Data

1997 Chevrolet S10

VIN IGCCS19XOV
Engine4.3 L / 6 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed

car Vehicle Data

1997 Chevrolet S10

VIN IGCCS19XOV
Engine4.3 L / 6 cyl
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)