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99 Camry 2.2L Check Engine Light

Home Forums Stay Dirty Lounge Service and Repair Questions Answered Here 99 Camry 2.2L Check Engine Light

This topic contains 1 reply, has 2 voices, and was last updated by Nightflyr * Richard Kirshy 5 months, 4 weeks ago.

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  • #953825
    SAL SAL57Olds
    SAL
    Participant

    1999 Toyota Camry 2.2L, 90,518 original miles
    Bought from original owner with CEL light on. I changed oil, new gas/air filter, spark plugs & wires, PCV valve. New front/upstream O2 sensor.
    The CEL light has these codes: PO171, P1130, P1133
    Where is the best place to get started? Thanks!

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  • #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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