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    2008 BMW 535I 3.0L Twin Turbo DOHC 6cyl

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    Ford Excursion, Expedition, Lincoln Navigator 2000-2005

    4.6L V8 VIN 6 Auto 1

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    4.6L V8 VIN 6 Auto

    Trouble Code: P0018



    Crankshaft Position - Camshaft Position Correlation - Bank 2 Sensor A

    Possible Causes:



    Camshaft timing incorrectly set
     
    VCT solenoid stuck in position
     
    Camshaft advance mechanism binding (VCT unit)
     

    Trouble Code: P0102



    MAF Sensor Circuit Low Input

    Possible Causes:



    Check for leaks at air outlet tube
     
    Sensor power circuit open, sensor ground circuit open
     
    Sensor signal circuit open (may be disconnected)
     
    Check for loose tube clamps near the MAF sensor
     

    Trouble Code: P0103



    MAF Sensor Circuit High Input

    Possible Causes:



    Check for a restricted inlet screen on the MAF sensor.
     
    MAF sensor signal circuit is shorted to system power (B+)
     
    MAF sensor is damaged or the PCM has failed
     

    Trouble Code: P0112



    Intake Air Temperature Sensor Circuit Low Input

    Possible Causes:



    IAT sensor signal circuit is grounded (check wiring & connector)
     
    IAT sensor is damaged or it has failed
     
    PCM has failed
     

    Trouble Code: P0113



    Intake Air Temperature Sensor Circuit High Input

    Possible Causes:



    IAT sensor signal circuit is open (inspect wiring & connector)
     
    IAT sensor signal circuit is shorted to VREF (5v)
     
    IAT sensor is damaged or it has failed
     
    PCM has failed
     

    Trouble Code: P0117



    ECT Sensor Circuit Low Input

    Possible Causes:



    ECT sensor signal circuit is grounded in the wiring harness
     
    ECT sensor is damaged or the PCM has failed
     

    Trouble Code: P0118



    ECT Sensor Circuit High Input

    Possible Causes:



    ECT sensor signal circuit is open (inspect wiring & connector)
     
    ECT sensor signal circuit is shorted to VREF (5v)
     
    ECT sensor is damaged or it has failed
     
    PCM has failed
     

    Trouble Code: P0121



    TP Sensor Signal Range/Performance

    Possible Causes:



    Throttle plate is binding, dirty or sticking
     
    TP sensor signal circuit open (inspect wiring & connector)
     
    TP sensor ground circuit open (inspect wiring & connector)
     
    TP Sensor is damaged or has failed
     

    Trouble Code: P0122



    TP Sensor Circuit Low Input

    Possible Causes:



    TP sensor signal circuit open (inspect wiring & connector)
     
    TP sensor signal shorted to ground (inspect wiring & connector)
     
    TP sensor VREF circuit is open (between the sensor and PCM)
     
    TP sensor is damaged or has failed
     
    PCM has failed
     

    Trouble Code: P0123



    TP Sensor Circuit High Input

    Possible Causes:



    TP sensor not seated correctly in housing (may be damaged)
     
    TP sensor signal is circuit shorted to VREF or system voltage
     
    TP sensor ground circuit is open (check the wiring harness)
     
    Perform a "sensor sweep test" and monitor for any glitches
     
    PCM has failed
     

    Trouble Code: P0125



    Insufficient Coolant Temperature For Closed Loop

    Possible Causes:



    Check the coolant mixture for an incorrect mixture
     
    Check the operation of the thermostat (it may be stuck open)
     
    ECT sensor (or the CHT sensor) has failed
     
    Inspect for low coolant level
     

    Trouble Code: P0126



    Insufficient Coolant Temperature For Closed Loop

    Possible Causes:



    Check the coolant mixture for an incorrect mixture
     
    Check the operation of the thermostat (it may be stuck open)
     
    ECT sensor (or the CHT sensor) has failed
     
    Inspect for low coolant level
     

    Trouble Code: P0131



    HO2S-11 (Bank 1 Sensor 1) Circuit High Input

    Possible Causes:



    HO2S connector pins damaged
     
    Loose circuit connections (including harness connectors)
     
    PCM has failed
     

    Trouble Code: P0132



    HO2S-11 (Bank 1 Sensor 1) Circuit High Input

    Possible Causes:



    HO2S signal shorted to heater power circuit inside connector
     
    HO2S signal circuit shorted to VREF or to system voltage
     
    PCM has failed
     

    Trouble Code: P0133



    HO2S-11 Circuit Slow Response (Bank 1, Sensor 1)

    Possible Causes:



    Contaminated HO2S* Exhaust leaks
     
    Shorted/open wiring
     
    Incorrect fueling
     
    MAF sensor
     
    Deteriorating HO2S
     
    Inlet air leaks
     

    Trouble Code: P0135



    HO2S-11 Heater Circuit (Bank 1, Sensor 1)

    Possible Causes:



    Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications
     
    Short to VPWR in the harness or HO2S
     
    Water in the harness connector
     
    Open VPWR circuit
     
    Open GND circuit
     
    Low battery voltage
     
    Corrosion or incorrect harness connections
     
    Damaged HO2S heater
     

    Trouble Code: P0136



    HO2S-12 Circuit Malfunction (Bank 1, Sensor 2)

    Possible Causes:



    Pinched, shorted, and corroded wiring and pins
     
    Crossed sensor wires
     
    Exhaust leaks
     
    Contaminated or damaged sensor
     

    Trouble Code: P0138



    HO2S-11 (Bank 1 Sensor 1) Circuit High Input

    Possible Causes:



    HO2S signal shorted to heater power circuit inside connector
     
    HO2S signal circuit shorted to VREF or to system voltage
     
    PCM has failed
     

    Trouble Code: P0141



    HO2S-11 Heater Circuit (Bank 1, Sensor 1)

    Possible Causes:



    Vacuum hose disconnected on exhaust gas recirculation (EGR) system module (ESM) applications* Short to VPWR in the harness or HO2S
     
    Water in the harness connector
     
    Open VPWR circuit
     
    Open GND circuit
     
    Low battery voltage
     
    Corrosion or incorrect harness connections
     
    Damaged HO2S heater
     

    Trouble Code: P0152



    HO2S-21 (Bank 2 Sensor 1) Circuit High Input

    Possible Causes:



    * HO2S is contaminated (due to presence of silicone in fuel)
     
    HO2S signal tracking (due to oil or moisture in the connector)
     
    HO2S signal circuit is open or shorted to VREF
     
    PCM has failed
     

    Trouble Code: P0153



    HO2S-21 (Bank 2 Sensor 1) Circuit Slow Response

    Possible Causes:



    HO2S is contaminated (due to presence of silicone in fuel)
     
    Leaks present in the exhaust manifold or exhaust pipes
     
    HO2S is damaged or has failed
     
    PCM has failed
     

    Trouble Code: P0155



    HO2S-21 (Bank 2 Sensor 1) Heater Circuit Malfunction

    Possible Causes:



    HO2S heater power circuit is open
     
    HO2S heater ground circuit is open
     
    HO2S signal tracking (due to oil or moisture in the connector)
     
    HO2S is damaged or has failed
     
    PCM has failed
     

    Trouble Code: P0156



    HO2S-22 (Bank 2 Sensor 2) Circuit No Activity

    Possible Causes:



    Leaks present in the exhaust manifold or exhaust pipes
     
    HO2S signal wire and ground wire crossed in connector
     
    HO2S element is fuel contaminated or has failed
     
    PCM has failed
     

    Trouble Code: P0158



    HO2S-22 (Bank 2 Sensor 2) Circuit High Input

    Possible Causes:



    HO2S signal shorted to the heater power circuit (due to oil or moisture in the connector)
     
    HO2S signal circuit shorted to VREF or to system voltage
     
    PCM has failed
     

    Trouble Code: P0161



    HO2S-22 (Bank 2 Sensor 2) Heater Circuit Malfunction

    Possible Causes:



    HO2S heater power circuit or the heater ground circuit is open
     
    HO2S signal tracking (due to oil or moisture in the connector)
     
    HO2S has failed, or the PCM has failed
     

    Trouble Code: P0171



    Fuel System Too Lean (Cylinder Bank 1)

    Possible Causes:



    Air leaks after the MAF sensor, or leaks in the PCV system
     
    Exhaust leaks before or near where the HO2S is mounted
     
    Fuel injector(s) restricted or not supplying enough fuel
     
    Fuel pump not supplying enough fuel during high fuel demand conditions
     
    Leaking EGR gasket, or leaking EGR valve diaphragm
     
    MAF sensor dirty (causes PCM to underestimate airflow)
     
    Vehicle running out of fuel or engine oil dip stick not seated
     

    Trouble Code: P0172



    Fuel System Too Rich (Cylinder Bank 1)

    Possible Causes:



    Camshaft timing is incorrect, or the engine has an oil overfill condition
     
    EVAP vapor recovery system failure (may be pulling vacuum)
     
    Fuel pressure regulator is damaged or leaking
     
    HO2S element is contaminated with alcohol or water
     
    MAF or MAP sensor values are incorrect or out-of-range
     
    One of more fuel injectors is leaking
     

    Trouble Code: P0174



    Fuel System Too Lean (Cylinder Bank 2)

    Possible Causes:



    Air leaks after the MAF sensor, or leaks in the PCV system
     
    Exhaust leaks before or near where the HO2S is mounted
     
    Fuel injector(s) restricted or not supplying enough fuel
     
    Fuel system not supplying enough fuel during high fuel demand conditions (e.g., the fuel pump may not supply enough fuel)
     
    Leaking EGR gasket, or leaking EGR valve diaphragm
     
    MAF sensor dirty (causes PCM to underestimate airflow)
     
    Vehicle running out of fuel or engine oil dip stick not seated
     

    Trouble Code: P0175



    Fuel System Too Rich (Cylinder Bank 2)

    Possible Causes:



    Camshaft timing is incorrect
     
    Engine oil overfill condition
     
    EVAP vapor recovery system failure (may be pulling vacuum)
     
    Fuel pressure regulator is damaged or leaking
     
    HO2S element is contaminated with alcohol or water
     
    MAF or MAP sensor values are incorrect or out-of-range
     
    One of more fuel injectors is leaking
     

    Trouble Code: P0218



    Transmission Fluid Temperature Over-Temperature

    Possible Causes:



    Low transmission fluid level
     
    Transmission cooling system concerns
     

    Trouble Code: P0219



    Engine Over-Speed Condition

    Possible Causes:



    Engine operated in the wrong transmission gear position
     
    Excessive engine speed with gear selector in Neutral position
     
    Wheel slippage due to wet, muddy or snowing conditions
     

    Trouble Code: P0230



    Fuel Pump Primary Circuit Malfunction

    Possible Causes:



    FP or FSV circuit is open or shorted
     
    Fuel pump relay VPWR circuit open
     
    Fuel pump relay is damaged or has failed
     
    PCM has failed
     

    Trouble Code: P0231



    Fuel Pump Primary Circuit Low Input

    Possible Causes:



    FP or FSV circuit is open or shorted to ground
     
    Fuel pump relay VPWR circuit open or fuel pump relay failed
     
    PCM has failed
     

    Trouble Code: P0232



    Fuel Pump Secondary Circuit High Input

    Possible Causes:



    Fuel pump relay contacts always closed
     
    Fuel pump ground circuit has high resistance
     
    Fuel pump secondary circuit is shorted to power
     
    Low speed fuel pump relay damaged or related circuit problem
     

    Trouble Code: P0300



    Random Misfire Detected

    Possible Causes:



    Base engine mechanical fault that affects two or more cylinders
     
    Fuel metering fault that affects two or more cylinders
     
    Fuel pressure too low or too high, fuel supply contaminated
     
    EVAP system problem or the EVAP canister is fuel saturated
     
    EGR valve is stuck open or the PCV system has a vacuum leak
     
    Ignition system fault (coil, plug) affecting two or more cylinders
     
    MAF sensor contamination (it can cause a very lean condition)
     
    Vehicle driven while very low on fuel (less than 1/8 of a tank)
     

    Trouble Code: P0301



    Cylinder Number 1 Misfire Detected

    Possible Causes:



    Air leak in the intake manifold, or in the EGR or PCM system
     
    Base engine mechanical problem that affects only Cylinder 1
     
    Fuel delivery component problem that affects only Cylinder 1 (i.e., a contaminated, dirty or sticking fuel injector)
     
    Ignition system problem (coil, plug) that affects only Cylinder 1
     

    Trouble Code: P0302



    Cylinder Number 2 Misfire Detected

    Possible Causes:



    Air leak in the intake manifold, or in the EGR or PCM system
     
    Base engine mechanical problem that affects only Cylinder 2
     
    Fuel delivery component problem that affects only Cylinder 2 (i.e., a contaminated, dirty or sticking fuel injector)
     
    Ignition system problem (coil, plug) that affects only Cylinder 2
     

    Trouble Code: P0303



    Cylinder Number 3 Misfire Detected

    Possible Causes:



    Air leak in the intake manifold, or in the EGR or PCM system
     
    Base engine mechanical problem that affects only Cylinder 3
     
    Fuel delivery component problem that affects only Cylinder 3 (i.e., a contaminated, dirty or sticking fuel injector)
     
    Ignition system problem (coil, plug) that affects only Cylinder 3
     

    Trouble Code: P0304



    Cylinder Number 4 Misfire Detected

    Possible Causes:



    Air leak in the intake manifold, or in the EGR or PCM system
     
    Base engine mechanical problem that affects only Cylinder 4
     
    Fuel delivery component problem that affects only Cylinder 4 (i.e., a contaminated, dirty or sticking fuel injector)
     
    Ignition system problem (coil, plug) that affects only Cylinder 4
     

    Trouble Code: P0305



    Cylinder Number 5 Misfire Detected

    Possible Causes:



    Air leak in the intake manifold, or in the EGR or PCM system
     
    Base engine mechanical problem that affects only Cylinder 5
     
    Fuel delivery component problem that affects only Cylinder 5 (i.e., a contaminated, dirty or sticking fuel injector)
     
    Ignition system problem (coil, plug) that affects only Cylinder 5
     

     
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