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2000 Ford Expedition XLT 5.4L Poor Idle Quality, Hesitation
Posted to Ford Driveability on 3/21/2013 10 Replies

having code po174 and po156, both relating to bank 2. ive checked for vacuum leaks with a smoke machine, i also removed the elbow behind the iac to look visually for a cracked line. cannot seeem to find any vacuum leaks.

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  Related Documents & Media  2000 Ford Expedition XLT

 
Message Closed w/FIX

car Vehicle Data

2000 Ford Expedition XLT

VIN 1FMPU16L7Y
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation
OccursAlways

Trouble Codes

P0156Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2000 Ford Expedition XLT

VIN 1FMPU16L7Y
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation
OccursAlways

Trouble Codes

P0156Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction
P0174Fuel System Too Lean (Bank 2)