
1998 Mercury Mountaineer 4.0L Poor Idle Quality, Cuts out, Stall, Poor Fuel Economy, MIL Lamp on
The truck sat for 2 years after it was hit in the D/S front then it was fixed and it was running bad and not wanting to idle the body shop replaced the spark plugs and wires. I then got the truck it had mis fire code for every cylinder and the Po171 and P0174,...
FIX posted 12/10/2005
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Message Closed w/FIX
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VIN | 4M2ZU54E4W |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Cuts Out, Stall, Poor Fuel Economy, MIL Lamp On |
Occurs | Cold, Hot, Idle |
Trouble Codes
P0156 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction |
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |
P1151 | Fuel Rail Pressure - Maximum Positive Deviation |
Message Closed w/FIX
Vehicle Data
1998 Mercury Mountaineer
VIN | 4M2ZU54E4W |
Engine | 4.0 L / 6 cyl / GAS |
Trans | 5-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Cuts Out, Stall, Poor Fuel Economy, MIL Lamp On |
Occurs | Cold, Hot, Idle |
Trouble Codes
P0156 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction |
P0171 | Fuel System Too Lean (Bank 1) |
P0174 | Fuel System Too Lean (Bank 2) |
P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |
P1151 | Fuel Rail Pressure - Maximum Positive Deviation |