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1999 Isuzu NPR-HD 5.7L Hesitation
Posted to Asian Driveability on 5/27/2013 7 Replies

Help!!! this truck has no power. Feels like a plugged cat, bad air flow meter, dirty air flow sensor, low fuel pressure. It has codes for lean condition 171 & 174. The fleet mechanic replaced distributor, 2 fuel pumps, air flow meter, and substituted a good pc...

7 Replies Received (View Replies)

  Related Documents & Media  1999 Isuzu NPR-HD

 
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car Vehicle Data

1999 Isuzu NPR-HD

VIN 4KLC4B1R1X
Engine5.7 L / 8 cyl / GAS
DeliveryFuel Injection / cpi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load
Misc.Very Well Maintained

Trouble Codes

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

car Vehicle Data

1999 Isuzu NPR-HD

VIN 4KLC4B1R1X
Engine5.7 L / 8 cyl / GAS
DeliveryFuel Injection / cpi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load
Misc.Very Well Maintained

Trouble Codes

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