1988 Chevrolet C1500 Cheyenne 5.7L Excessive Emissions
there it no grd signal to egr control valve and other related components at any time, off idle throttle, at hyway speed, in any gear.. other wise the truck runs fine nox is way too high dont know this system, can u point me in the right direction, i could even...
FIX posted 2/1/2012
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Message Closed w/FIX
Vehicle Data1988 Chevrolet C1500 Cheyenne
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Message Closed w/FIX
Vehicle Data
1988 Chevrolet C1500 Cheyenne
VIN | 1GCDC14K8J |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 3-speed Automatic |
Delivery | Fuel Injection / tbi |
Emissions | ca |
Symptoms | Excessive Emissions |
Occurs | Always |
Misc. | Tbi |