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1994 GMC K1500 Suburban SLE 5.7L Excessive Emissions, Cuts out
Posted to GM Driveability on 3/11/2008 8 Replies

this vehicle will not go into closed loop at idle (hot). oxygen sensor readings around 900mv to 1v. iac motor will lower itself to 30-40 counts. if i press throttle 5-10% the oxygen sensor starts switching and goes into closed loop hot or cold. if i leave it i...

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Message Closed w/FIX

car Vehicle Data

1994 GMC K1500 Suburban SLE

VIN 1GKFK16K5R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
SymptomsExcessive Emissions, Cuts Out
OccursAlways
Message Closed w/FIX

car Vehicle Data

1994 GMC K1500 Suburban SLE

VIN 1GKFK16K5R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
SymptomsExcessive Emissions, Cuts Out
OccursAlways