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International Automotive Technicians Network
2002 Chevrolet S10 2.2L MIL Lamp on
Posted to GM Driveability on 11/25/2009 18 Replies

Vehicle has PO420 Cat Efficency code, checked exhaust readings, all good, Oxygens sensors good, front new. Showing that light is setting at idle, all our info shows should not set untill over [...], New aftermarket converter was installed 6months ago with no p...

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  Related Documents & Media  2002 Chevrolet S10

 
Message Closed w/Summary

car Vehicle Data

2002 Chevrolet S10

VIN 1GCCS195X2
Engine2.2 L / 4 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/Summary

car Vehicle Data

2002 Chevrolet S10

VIN 1GCCS195X2
Engine2.2 L / 4 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)