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1999 Toyota 4Runner Limited 3.4L Poor Idle Quality, Poor Fuel Economy, MIL Lamp on
Posted to Asian Driveability on 10/29/2007 14 Replies

This 99 Toyota [...] has a PO171 System lean code, fuel trim is going crazy, smoked the system, no leaks found, fuel pressure is good, no leaks in the air induction system, O2's are good, MAF tests good... Thanks in advance for your assistance. David

14 Replies Received (View Replies)

  Related Documents & Media  1999 Toyota 4Runner Limited

 
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car Vehicle Data

1999 Toyota 4Runner Limited

VIN JT3GN87ROX
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
Message Closed

car Vehicle Data

1999 Toyota 4Runner Limited

VIN JT3GN87ROX
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpfi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Poor Fuel Economy, MIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)