P0131 Diagnostic Trouble Code Discussion for December 2008
Air Fuel Sensor (Bank 1 Sensor 1) Circuit Low Input (Lean Shift)
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| Help Request | Posted | |
| 2002 Mazda Protege DX 2.0L Poor Idle Quality, Cuts out, MIL Lamp on VIN: JH1BJ22622 P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Input (No Inversion). when i start the car the o2 readings will both drop very low. ie. sensor 1 at 0.035 sensor 2 at 0.100. i smoke tested it. fuel pressure is in range. monotored scan data, coolant and intake air temp are within range. thottle position sensor sweeps ok. mass air ... |
December 05, 2008 | |
| 1998 Saturn SL1 1.9L MIL Lamp on VIN: 1G8ZG5281W P0131: Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage. VEHICLE HAS TOTAL OF 8 CODES SAME AS ABOVE PLUS PO507 IDLE CONTROL SYSTEM (RPM TOO HIGH )AND PO1404 EGR-2 POSITION ERROR/EGR CLOSED PERFORMANCE. O2 SENSOR LOOKS GOoD ON THE MODIS,TPS VOLTAGE IS .25V AT IDLE AND 3.3 AT WOT,WHEN I UNPLUG MAP SENSOR I GET .5V AN... |
December 08, 2008 |
