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Reply To: 99 Camry 2.2L Check Engine Light

#953830
Nightflyr *
Richard Kirshy
Participant

Oftentimes, a P0171 means that your having trouble with a dirty or faulty mass air flow (MAF) sensor, or a vacuum leak downstream of the MAF sensor (perhaps in the PCV line or in the valve itself).
Try cleaning the MAF sensor with the proper cleaner.
Smoke the engine and look for any leaks.

P1130 TOYOTA Possible Causes:
Faulty Air fuel Ratio (A/F) Bank 1 Sensor 1 … Considering you already replaced this assuming its good.
Air fuel Ratio (A/F) Bank 1 Sensor 1 harness is open or shorted … Circuit test the wiring. look on youtube for how to videos
Air fuel Ratio (A/F) Bank 1 Sensor 1 circuit poor electrical connection … Same as above
Fuel pressure … hook up a fuel pressure gauge to the fuel rail compare the reading you see to factory spec.
Fuel injector … This will require you to remove the injectors and test them. how to videos on youtube
Intake air leaks … Smoke test

P1133 TOYOTA Possible Causes:
Faulty Air/Fuel Ratio Sensor Bank 1 Sensor 1 … See above
Air/Fuel Ratio Sensor Bank 1 Sensor 1 harness is open or shorted … See above
Air/Fuel Ratio Sensor Bank 1 Sensor 1 circuit poor electrical connection … See above

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