ERROR: SQLSTATE[42000] [1203] User 505076_quest already has more than 'max_user_connections' active connections P0130 1999 Toyota Camry Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 1 OBDII Engine Light Trouble Code | Engine-Codes.com


P0130 1999 TOYOTA CAMRY - Heated Oxygen Sensor Circuit Malfunction Bank 1 Sensor 1

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?
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Possible causes
- Faulty Front Heated Oxygen Sensor Bank 1
- Front Heated Oxygen Sensor Bank 1 harness is open or shorted
- Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
What does this mean? What does this mean?
When is the code detected?
The response of the voltage signal from the sensor takes more than the specified time.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P0130 1999 Toyota Camry Description

The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas compared to the outside air. The heated oxygen sensor 1 has a closed-end tube made of ceramic zirconia. The zirconia generates voltage from approximately 1V in richer conditions to 0V in leaner conditions. The heated oxygen sensor 1 signal is sent to the Engine Control Module (ECM). The ECM adjusts the injection pulse duration to achieve the ideal air-fuel ratio. The ideal air-fuel ratio occurs near the radical change from 1V to 0V.