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Rear O2 and fuel triims

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Old Nov 17, 2009, 01:53 AM
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Rear O2 and fuel triims
Do we need this to help with the fuel trims? I've seen where some people are having problems with them not moving. I know some vehicles have to have it hooked up to help the ECU with the trims....32bit Subaru's to name one.
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Old Nov 17, 2009, 04:43 AM
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Originally Posted by utripin
Do we need this to help with the fuel trims? I've seen where some people are having problems with them not moving. I know some vehicles have to have it hooked up to help the ECU with the trims....32bit Subaru's to name one.
Not sure about the rear but if you turn off the front o2 heater via perephery bits it disables the stft routine.
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Old Nov 17, 2009, 07:32 AM
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same if u disable rear O2
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Old Nov 17, 2009, 09:45 PM
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I watched someone re-install their rear 02 today. Their formerly stationary fuel trims are now functioning properly.

On a side note the car also runs MUCH better.
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Old Nov 18, 2009, 10:14 AM
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Ahhhhhhhhhhhhhhhhhhhhhhhh Y E S
Thanks people......hooked mine back up and now my trims are moving. Very cool...
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