P1130 1997 TOYOTA CAMRY - A/F Sensor Circuit Range/Performance Malfunction

Possible causes

- Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1

- Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted

- Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection

- Fuel pressure

- Fuel injector

- Intake air leaks

- ECM

When is the code detected?

The 1130 code is set when A/F sensor output voltage change value is not what the Engine Control Module (ECM) is expecting.

Possible symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

P1130 1997 Toyota Camry Description

The Air-Fuel ratio (A/F) sensor varies its output voltage in proportion to the air-fuel ratio. Based on the output voltage, the Engine Control Module (ECM) determines if the air-fuel ratio is RICH or LEAN and adjusts the stoichiometric air-fuel ratio. The ECM also checks the fuel injection volume compensation value to check if the A/F sensor is deteriorating or not. A/F sensor response deterioration is determined by the ratio of the A/F sensor output voltage variation and fuel trim variation.