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1991 Ford F-250 Custom 7.5L Excessive Emissions
Posted to Ford Driveability on 5/14/2004 11 Replies

I know that the ecm sees inputs from the cts, the air temp sensor and the map sensor to operate the egr. My question is what else could effect the egr operation? The egr position sensor checks out as per specs also.

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  Related Documents & Media  1991 Ford F-250 Custom

 
Message Closed w/Summary

car Vehicle Data

1991 Ford F-250 Custom

VIN 1FTHX25G7M
Engine7.5 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / EFI
EmissionsCALIF
SymptomsExcessive Emissions
OccursAlways
Misc.8800 Gvw
Message Closed w/Summary

car Vehicle Data

1991 Ford F-250 Custom

VIN 1FTHX25G7M
Engine7.5 L / 8 cyl / GAS
Trans3-speed Automatic
DeliveryFI / EFI
EmissionsCALIF
SymptomsExcessive Emissions
OccursAlways
Misc.8800 Gvw