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2000 Chevrolet Silverado 1500 4.3L Hesitation
Posted to GM Driveability on 5/8/2008 16 Replies

I need some help. THis truck came in comlaing of losing power. Fuel pressure is at 60 psi. O2 are reading around 30 mv @ idle and fuel trim is 190. If I unplug the maf the the o2 read around 800 mv and fuel trim run around 128. I have replaced the maf twice no...

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  Related Documents & Media  2000 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Silverado 1500

VIN 1GCEC14W6Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursNot Applicable

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2000 Chevrolet Silverado 1500

VIN 1GCEC14W6Y
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursNot Applicable

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)