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1990 Buick Regal 3.8L Excessive Emissions, Poor Idle Quality, Surge, Misfire
Posted to GM Driveability on 3/19/2003 5 Replies

Hello group,

This Regal intermittently runs poorly in the form of overfueling, missing and surging. It had several codes listed (see above) and after about a minute the scan tool will lock up. I have tried the scan tool on other vehicles and it works fine but...

5 Replies Received (View Replies)

  Related Documents & Media  1990 Buick Regal

 
Message Closed w/FIX

car Vehicle Data

1990 Buick Regal

VIN 2G4WD11L4L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
EmissionsFEDERAL
SymptomsExcessive Emissions, Poor Idle Quality, Surge, Misfire
OccursIntermittently

Trouble Codes

13o2 sensor ckt open/short/bad
21TPS ckt high
39TCC malfunction
66A/C Freon low
Message Closed w/FIX

car Vehicle Data

1990 Buick Regal

VIN 2G4WD11L4L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / EFI
EmissionsFEDERAL
SymptomsExcessive Emissions, Poor Idle Quality, Surge, Misfire
OccursIntermittently

Trouble Codes

13o2 sensor ckt open/short/bad
21TPS ckt high
39TCC malfunction
66A/C Freon low