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1996 Chevrolet S10 2.2L Excessive Emissions, MIL Lamp on
Posted to GM Driveability on 4/23/2008 14 Replies

Vehicle runs clean at idle, and high rpm, on startup shortly after going into closed loop.O2 switches fine,injectors vary 1.0ms to 2.3ms,short fuel trim 0.Emissions basically 0. After a few minutes short term starts subtracting fuel gradually to -18%,O2 starts...

FIX posted 4/25/2008

14 Replies Received (View Replies)

  Related Documents & Media  1996 Chevrolet S10

Message Closed w/FIX

car Vehicle Data

1996 Chevrolet S10

VIN [No VIN Available]
Engine2.2 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, MIL Lamp On
OccursHot, Idle

Trouble Codes

P0172Fuel System Too Rich (Bank 1)