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1987 Cadillac DeVille 4.1L Excessive Emissions
Posted to GM Driveability on 7/17/2001 5 Replies

This vehicle failed the cruise smog test with a very high CO reading. It runs good and shows no signs of running too rich. I have checked the inputs at the ECM as well as the grounds and power inputs. I changed the O2 sensor just for grins. When warmed up at i...

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  Related Documents & Media  1987 Cadillac DeVille

 
Message Closed w/Summary

car Vehicle Data

1987 Cadillac DeVille

VIN 1G6CD5187H
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsCA
SymptomsExcessive Emissions
OccursCruise
Message Closed w/Summary

car Vehicle Data

1987 Cadillac DeVille

VIN 1G6CD5187H
Engine4.1 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI / TBI
EmissionsCA
SymptomsExcessive Emissions
OccursCruise