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1991 Buick Regal 3.1L No Start, Stall
Posted to GM Driveability on 9/30/2003 4 Replies

Hi. I have this idle problem with code 45. I originally had code 44 with an intermittent no idle, stalls. I replaced the lower intake gasket and code 44 changed to code 45. I tested fuel pressure 40psi at idle, no leak down with engine off. block learn reads 1...

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  Related Documents & Media  1991 Buick Regal

 
Message Closed w/FIX

car Vehicle Data

1991 Buick Regal

VIN 2G4WD51T2M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / 3.1 MFI
EmissionsOBD I
SymptomsNo Start, Stall
OccursIdle, Intermittently
Misc.4 Door Sedan

Trouble Codes

44system lean
45system rich
Message Closed w/FIX

car Vehicle Data

1991 Buick Regal

VIN 2G4WD51T2M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / 3.1 MFI
EmissionsOBD I
SymptomsNo Start, Stall
OccursIdle, Intermittently
Misc.4 Door Sedan

Trouble Codes

44system lean
45system rich