o2 sensor codes still being thrown after o2 simms

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Apr 2, 2006 | 01:18 PM

stevensLS1

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From: houston tx

o2 sensor codes still being thrown after o2 simms

well as the title says. also it says bank 1 is running lean? im just curious with the front o2 sensor running lean could that cause the rear ones to throw a code? the car has been dyno tuned. please help! thanks in advance

Apr 2, 2006 | 02:20 PM

brad8266

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From: Watertown, NY

Your post is kinda confusing. If you have sims in, you should not be getting any rear o2 codes. Your bank 1 being lean is a whole new story, you might have a bad bank 1 front sensor, or your closed loop tune is off.

Apr 2, 2006 | 02:29 PM

stevensLS1

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From: houston tx

whats this closed loop tune? and no offense but i posted cuz im not sure why the rear o2's are throwing codes if i have the o2 simms like you said? i will get a new front o2 for sure tho.

anyone else know why might rear o2's are still throwing codes?