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HOMESERVICE MANUALSMITSUBISHI2007ENDEAVOR SE, FWDREPAIR AND DIAGNOSISGENERAL INFORMATIONOBD-II DRIVE CYCLESDRIVE CYCLE PROCEDURES2000 ECLIPSEHEATED OXYGEN SENSOR MONITOR
2007 Mitsubishi Endeavor SE, FWD

Heated Oxygen Sensor Monitor

2007 Mitsubishi Endeavor SE, FWDSECTION Heated Oxygen Sensor Monitor

This monitor applies to DTCs P0130, P0136, P0150 and P0156. Following conditions must be met during the test:

  • Engine coolant temperature must be 176°F (80°C) or more.
  • Atmospheric temperature is 14°F (-10°C) or more.
  • If automatic transmission, selector lever is in "D" range.
  • If applicable, overdrive switch is in ON position.
  • If applicable, pattern select switch is in OFF position.

Monitor takes about 5 minutes to complete. To run monitor, use illustration. See Fig 1. Perform steps as follows:

  1. Remove all test equipment from vehicle and install all components and connectors that were removed or disconnected during testing.
  2. Start engine.
  3. Accelerate to 35-40 MPH.
  4. While keeping accelerator pedal opening degree constant, keep speed at 35-40 MPH for 120 seconds or more (M/T: 4th gear).
  5. Return vehicle to shop and turn ignition off.
  6. Confirm DTC is not output. If DTC is output, go to appropriate DTC test in appropriate SELF-DIAGNOSTICS article.
Fig 1: Running Heated Oxygen Sensor Monitor
G99D52608Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.