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1991 Cadillac Seville 4.9L Excessive Emissions, Poor Idle Quality, Misfire
Posted to GM Driveability on 9/16/2013 9 Replies

Vehicle came in running poorly. code 46 present. Not much in ALLDATA on code. test fuel pressure-good. Monitor o2 on both banks, found right bank running rich. Found inj pulse width on Rt bank cutting back to compensate.. Spark strong. EGR valve on affected ba...

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  Related Documents & Media  1991 Cadillac Seville

 
Message Closed w/FIX

car Vehicle Data

1991 Cadillac Seville

VIN 1G6KS53B3M
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / multi port
EmissionsFederal
SymptomsExcessive Emissions, Poor Idle Quality, Misfire
OccursAlways

Trouble Codes

46Right to left bank fuel imbalance
Message Closed w/FIX

car Vehicle Data

1991 Cadillac Seville

VIN 1G6KS53B3M
Engine4.9 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / multi port
EmissionsFederal
SymptomsExcessive Emissions, Poor Idle Quality, Misfire
OccursAlways

Trouble Codes

46Right to left bank fuel imbalance