Question about 2001 Ford Excursion

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Check-engine light on

What is wrong with my 2001 Excursion if the OBD2 reader shows error codes: P1132 and P1152, flashing "O" & "OH", non flashing "M", "F", & "CC"?

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Chuck Martin

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P1132 is front 02 bank 1 and P1152 is front 02 bank 2
This codes indicate a rich condition. I would check for a dirty air filter or a dirty MAF sensor.

Posted on Jan 31, 2009

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Car is running fine, just had a few days of cold weather and now my check engine light is on troubleshooting code p1132 and p1152 are showing. Meaning?


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You do not guess

You test or try things that do not involve money
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H40 DTCs P1131, P1132, P1151 AND P1152: UPSTREAM HO2S NOT SWITCHING. DTC P1130: FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN)
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    • Leaking fuel injector(s).
    • Leaking fuel pressure regulator.
    • Low fuel pressure or running out of fuel.
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    • PCV system.
    • Improperly seated engine oil dipstick.
    EGR System
    • Leaking gasket.
    • Stuck open EGR valve.
    • Leaking diaphragm.
    Base engine
    • Oil overfill.
    • Cam timing.
    • Cylinder compression.
    • Exhaust leaks before or near the HO2Ss.
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  • Check air cleaner element, air cleaner housing for blockage.
  • Verify integrity of the PCV system.
  • Check for vacuum leaks.

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Truck codes p1132 and p1152


Hi,

P1132 = Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1
P1152 = Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2

It sounds to me like the oxygen sensors (between the engine and catalytic converters) should be replaced. Good luck!

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