replaced front 02's w/ Bosch 13111

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07-03-2008, 03:39 PM

jlashley2001ss

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replaced front 02's w/ Bosch 13111

does the PCM have to relearn timing, fuel curves, etc etc after a front 02 replacement? Just curious guys. TIA

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07-05-2008, 10:57 AM

Bill Bowling

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I do not think so unless your old ones were real bad. Your trims will change but I would just drive it and you should be OK. Did you have any codes set?

Bill

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07-05-2008, 11:31 AM

WS6FirebirdTA00

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Just like Bill said, if the old ones were bad (and they sounded like they may have been) you may need some time for the fuel trims to come back in line.

Also, some guys have had issues with the 13111 sensors. Keep an eye out for codes on those things. I have not seen as many issues recently as I have in the past though.