Quote:
Originally Posted by NoBozo
My wifes Camry is a 2005. The car runs fine. Gas mileage is fine. The check engine light has been on for the past FOUR Years. I refuse to subject myself to the Barracudas at any Toyota dealer and I will NOT PAY to have those Barracudas READ my Codes and prounounce my engine Faulty.....$$$$
Every two years we (RI) have to have the car inspected. This is done by inserting Their plug into Your OBD plug under the dash and reading the Codes. This tells THEM that your car is COOL and you PASS....OR NOT.
SO: The day I go to have the car inspected,...I disconnect the negative battery cable and leave it disconnected for an hour or two. Overnight is better. The OBD Computer loses its memory and does not regain that memory for a day or two. The car passes inspection and all is well for the next two years...except the check engine light comes on a day later and I have to LIVE with it. Just sayin. Try IT. You will save thousands in BOGUS repair expences.
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I'm left with 2 thoughts. Either Toyota isn't in compliance with OBDII regs or the service station isn't actually plugging their tester into the plug. When you remove power the fault light goes out (some cars store the faults in flash memory and don't clear). What's supposed to happen is that over the next 100 - 200 miles of driving the car is (ideally) going to experience a wide enough range of operating conditions to be able to assess it's compliance with the federal emissions regulations. If it doesn't pass then the check engine light comes on. If it passes, it doesn't. Until this testing has been done the cars computer will "know" the testing isn't complete and communicate this "not ready" state to the stations testing reader. A "not ready" on the readiness code should not get you a passed sticker.
ps - Not every reason that makes the check engine light come on is reason to fail emission testing. A lot of the auto parts places will read your fault codes for free ... hoping to sell you parts of course.