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2002 Mercury Mountaineer 4.0L Poor Idle Quality, Surge, MIL Lamp on
Posted to Ford Driveability on 11/6/2007 13 Replies

I believe I have a bad pcm but at 935.00 I want to be posative. This car was sent to me from another shop. They replaced both front oxygen sensors with new ones from Ford. The car will start and run but rough, it will surge after a while and sometimes stall. I...

13 Replies Received (View Replies)

  Related Documents & Media  2002 Mercury Mountaineer

 
Message Closed w/FIX

car Vehicle Data

2002 Mercury Mountaineer

VIN 4M2ZU86E02
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0132Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage
P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0152Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage
Message Closed w/FIX

car Vehicle Data

2002 Mercury Mountaineer

VIN 4M2ZU86E02
Engine4.0 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0132Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit High Voltage
P0151Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit Low Voltage
P0152Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage