
2000 Mercury Cougar 2.5L Poor Idle Quality, MIL Lamp on
Car came in running rough and codes po172 system too rich b1 and p0174 system too lean b2. Fuel trims were 30 +. Looked for vac. Leaks and found intake gasket leaking. Replaced upper and lower gasket and rechecked for leaks and none were found. Customer return...
Summary posted 6/27/2012
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VIN | 1ZWFT61L2Y |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / MFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/Summary
Vehicle Data
2000 Mercury Cougar
VIN | 1ZWFT61L2Y |
Engine | 2.5 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / MFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, MIL Lamp On |
Occurs | Always, Idle |
Trouble Codes
P0174 | Fuel System Too Lean (Bank 2) |