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cause ????? effect too lean or too rich

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Old 12-03-2007, 06:11 PM
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Default cause ????? effect too lean or too rich

what would cause my engine to run too lean or too rich?????


Old 12-03-2007, 06:12 PM
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Default Re: cause ????? effect too lean or too rich (camarine2003)

usually a bad O2 sensor
Old 12-03-2007, 06:13 PM
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Default Re: cause ????? effect too lean or too rich (camarine2003)

How do you know it's running too lean or too rich?
Old 12-03-2007, 06:15 PM
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check engine light code......
Old 12-03-2007, 06:34 PM
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could a really dirty air filter cause this ?????
Old 12-04-2007, 05:39 AM
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morning bump
Old 12-04-2007, 06:04 AM
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I dont not beleive so. what mods do you have done?
Old 12-04-2007, 07:48 AM
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Default Re: (ivannaciv)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ivannaciv &raquo;</TD></TR><TR><TD CLASS="quote">I dont not beleive so. what mods do you have done?</TD></TR></TABLE>in for some info or toughts of this!
Old 12-04-2007, 08:08 AM
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Default Re: (mortificationrock)

If someone took a **** in your intake that could do it.
Old 12-04-2007, 08:37 AM
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Default Re: (JDM_teh_WIN!!)

Too rich can be caused by a clogged air filter or sticky/shitty injectors or a hole in the FPR diaphragm. Too lean can be caused by vacuum leaks or a weak fuel pump, for a couple examples.
Old 12-04-2007, 08:50 AM
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Default Re: (JDM_teh_WIN!!)

Did you add a FPR, changed your injectors, O2 took a ****, changed your ECU to some custom ebay chip? What's the setup?
Old 12-04-2007, 07:14 PM
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cold air intake that all right now
Old 12-04-2007, 08:57 PM
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Default Re: (camarine2003)

Do a full tune up, and clean the injectors an change the air filter(just in case), an make sure the 02 sensor isn't bad....if that doesnt solve the problem could be something major
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