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Home >> Toyota >> 1995 >> MR2 2.2 S, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.2L (Non-Turbo) >> Diagnostic Testing >> Code 27 - Sub-Oxygen Sensor Circuit (CALIF.) >> Code Detection Test Drive

Code Detection Test Drive

  1. Ensure ignition is off. Remove EFI (15-amp) fuse for at least 10 seconds. Reinstall fuse. Connect jumper wire between DLC1 terminals TE2 and E1. See Figure. Start engine and warm to normal operating temperature.
  2. Drive vehicle at 50-55 MPH for 10 minutes or more. Stop vehicle and allow to idle for 2 minutes or less. Accelerate vehicle to 60 MPH with throttle fully open (WOT). If malfunction exists, MIL will illuminate while accelerating under full throttle.
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