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1996 Chevrolet K2500 Suburban LS 7.4L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
Posted to GM Driveability on 6/29/2007 5 Replies

thank you in advance. '96 7.4L suburban running rich. both codes (p0172, p0175) checked fuel pressure regulator and its not leaking. fuel pressure good (54 psi). performed injector balance test found #6 bad (letting out too much fuel, by about 10 psi) so i rep...

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  Related Documents & Media  1996 Chevrolet K2500 Suburban LS

 
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet K2500 Suburban LS

VIN 3GNGK26J5T
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet K2500 Suburban LS

VIN 3GNGK26J5T
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)