Question about 1999 Toyota Camry

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Check engine light keep coming on after repairs

Took it had tested inspector said it fail because OBD hasn't reset itself told me to drive car about 50 to 100 miles but the light come back on after about 20 miles i took the EFI fuse out for 5 min the light went out but still came back on change egr vavle and egr air flow module it show no other codes but light still come on

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  • andrestrozie May 11, 2009

    how can i find the fault code that is stored

  • andrestrozie May 11, 2009

    no it was the inspector who done the testing he show me what the diagnostic comments about ODB Readiness wasnt able to read the engine for codes after the repairs

  • andrestrozie May 11, 2009

    its always on until i get turn off

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With these computers, anytime your check engine light comes on and than you replace the part, the computer has to be reset with handheld scanner/computer.
So even with a new part, the computer still has to be electronically reset.
Even if there are no codes. You won't have codes because the part is new, but the engine light will remain on until it is reset.

If you have all new parts, no codes, and had the system reset. It could be a problem with the computer itself and will have to be put on a diagnostic computer for further testing.

Posted on May 11, 2009

  • Nate Stansfield
    Nate Stansfield May 11, 2009

    you will need a handheld scanner such as EZ-Reader Or Scout or similar.

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The infomation u were given is 100% wrong! if the light is coming on then a problem exists in the OBD 2 engine control system, there will be a fault code stored for the check engine light, who told u this the dealer??

Posted on May 11, 2009

  • yadayada
    yadayada May 11, 2009

    Is the light coming on at ramdom or is it always on?

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