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1994 Chevrolet P30 7.4L Excessive Emissions
Posted to GM Driveability on 8/15/2017 24 Replies

Good afternoon Techs. I have this class A motor home that has a GM 7.4 that runs very rich on cold start up. Looking at scanner data everything looks good except it has a MAT reading of -40 and has no codes. I have looked for a manifold air temp sensor and can...

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  Related Documents & Media  1994 Chevrolet P30

 
Message Closed w/Summary

car Vehicle Data

1994 Chevrolet P30

VIN 1GBKP37N5R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
SymptomsExcessive Emissions
OccursCold
Message Closed w/Summary

car Vehicle Data

1994 Chevrolet P30

VIN 1GBKP37N5R
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / TBI
SymptomsExcessive Emissions
OccursCold