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2000 TOYOTA MR2

2.2L I4FWDAUTOMATICgas
Repairs0Labor593Torque2417Fluid6DTC695Battery1Maintenance0Recalls0
P0177low severityPowertrain

Fuel Composition Sensor Circuit Range/Performance

on 2000 Toyota MR2 2.2L I4 · FWD

What this code means

The fuel composition sensor reading is outside expected range.

Symptoms

  • Check Engine Light
  • Incorrect fueling

Common causes

  • Contaminated sensor
  • Sensor calibration issue
  • Mixed fuel types

Diagnostic steps

  1. Compare sensor reading to known fuel type
  2. Test sensor output range

Repair notes

Replace sensor.

Other Powertrain codes on this vehicle

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