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1998 Chevrolet K1500 Cheyenne 5.7L Excessive Emissions, Hesitation, MIL Lamp on
Posted to GM Driveability on 10/23/2014 9 Replies

Thanks guys in advance. This is not the usual P1345 situation we have all seen & is much info already posted. When distributor is installed at TDC the computer always reads -25 on scanner retard. If you advance it one tooth it ALWAYS reads +30 on scanner cam r...

9 Replies Received (View Replies)

  Related Documents & Media  1998 Chevrolet K1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 2GCEK19R5W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / CFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, MIL Lamp On
OccursAlways
Misc.Z71 4X4

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet K1500 Cheyenne

VIN 2GCEK19R5W
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / CFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Hesitation, MIL Lamp On
OccursAlways
Misc.Z71 4X4

Trouble Codes

P1345Mass Airflow Sensor Loose Contact With Low Frequency