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1994 Chevrolet C1500 Suburban 5.7L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on
Posted to GM Driveability on 4/20/2011 18 Replies

Thank you for your help on this one, it is driving me crazy. After tune up,(Jan 10, 2011) this truck ran great but within a week or so it started to act up when started cold. Then it would not run well at all when cold but ok when warm. Yesterday the customer ...

18 Replies Received (View Replies)

  Related Documents & Media  1994 Chevrolet C1500 Suburban

 
Message Closed w/Summary

car Vehicle Data

1994 Chevrolet C1500 Suburban

VIN 1GNFK16K1R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBDI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp On
OccursCold, Every Time Started

Trouble Codes

33Map sensor circuit high
45Rich exhaust
Message Closed w/Summary

car Vehicle Data

1994 Chevrolet C1500 Suburban

VIN 1GNFK16K1R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
EmissionsOBDI
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp On
OccursCold, Every Time Started

Trouble Codes

33Map sensor circuit high
45Rich exhaust