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General check engine light information

 
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Old 02 May 2015, 02:38 pm
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Location: Banning Ca.
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Default General check engine light information

[B]Just wanted to pass on some check engine light issues to those who want it. The computer has several features built into it. If you have a code showing and you cannot clear it by a reset or by disconnecting the battery I have found that it is caused by a major malfunction most likely a direct short in the harness or sensor it is important to carefully inspect each wire for damage. The check engine light will flash 10 times (Key on non running Position)whenever the power to the car has been disconnected. It should stop when the computer completes a full cycle check and no malfunction is detected. The car will not pass a smog inspection until the light stops flashing. If the light is flashing while driving this is a warning to check the car asap. I have found and see it all the time rodent damage is the cause on the wiring (I know sounds crazy) Chewed wiring will cause the computer to throw a false code a bad oxygen sensor code such as P0038. When you replace the sensor it still shows the code. If you are replacing parts according to the code and it is not clearing the code inspect carefully the harness. Chewed harness with exposed wires can short and destroy the ECM. If you have a check engine light that you cannot shut off most likely this is the cause.[/B]
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Old 02 May 2015, 02:47 pm
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Default Re: General check engine light information

Photo of wire damage 02 sensor bank1 sensor 2
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