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Edward, ASE Certified Technician
Category: Ford
Satisfied Customers: 3136
Experience:  ASE certified. Auto Transmission rebuilder for Ford Motor Co. from 91 to 2000
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hello i have a 01 ford excurcion, v10 6.8 liter. there are

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hello i have a 01 ford excurcion, v10 6.8 liter. there are 2 codes p1131 and p1151. thanks
Hello and thanks for your question. My name is XXXXX XXXXX I will do all I can to help.

Those are lean codes. Did you double check for any vacuum leaks? hows it idle is it rough idle? thanks.

Customer: replied 4 years ago.

i check for vaccum leaks but nothing, the idle its ok.

there is another code. po359.


Alright, P0359 is for the coil on cylinder 9 misfiring. I would check the coil for any signs of burning or arcing, Replace the coil on plug, and check and replace the spark plug as needed. That should take care of the P0359 barring a failed ignition driver in the PCM.

I'm checking notes and fault tracing for the other codes. Give me just a few more minutes thank you.
Customer: replied 4 years ago.

which cyl is #9?

4 cyl. back on drivers side. look at this pic


P1151 indicates a lean condition. Check all your vacuum lines, PCV system. check for any cracks in PCV line, as well as spray some carb cleaner along the intake runners to check for intake gasket leaks. If you don't see any vacuum leaks. Then I would replace the 1st sensor in Bank 2.

That is the front O2 sensor ahead of the cat coming off the drivers side.

DTC Code P1151

DTC Code:P1151
Description: HO2S B2S1 Sw Point Indicates Lean
Probable Causes:
  1. Sensor or solenoid faulty
  2. Connector terminal contact is damaged or corroded
  3. Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
  4. Update control unit software - Check for the latest control unit update
  5. Powertrain or Engine Control Module faulty
  6. HO2S sensor contamination/damaged
  7. Exhaust leaks or restrictions
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