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1994 GMC K1500 Sierra SL 5.7L Misfire, At 800 RPM in Drive
Posted to GM Driveability on 5/14/1998

Engine misses in drive at 800 RPM only.

EGR duty cycle goes to 100 %

Des egr 100% Fuel trim; 125 Tps .62 Prom I.D. 8135 O2 cross counts at idle '2' When EGR is disconnected miss is gone Runs good at all other engine RPM

Thanks for any info on this problem ...

  Related Documents & Media  1994 GMC K1500 Sierra SL

 
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car Vehicle Data

1994 GMC K1500 Sierra SL

VIN 2GTEK19K5R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsCanadian
SymptomsMisfire, at 800 RPM in Drive
OccursAlways, Idle
Misc.4X4 Pk Up
Message Closed

car Vehicle Data

1994 GMC K1500 Sierra SL

VIN 2GTEK19K5R
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / TBI
EmissionsCanadian
SymptomsMisfire, at 800 RPM in Drive
OccursAlways, Idle
Misc.4X4 Pk Up