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Topic: obd2 codes (Read 1345 times) |
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shaun
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shaun
 
Posts: 492
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did a test on wifes cozzy the only thing that came up was ,,po171 bank 1 too lean
po 174 bank 2 too lean
is this bad if so how can i fix
thanks shaun
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Pegasus
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24V Cosworth Ultima Born: Sept 97, sold Aug 23
Posts: 741
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Re: obd2 codes
« Reply #1 on: Apr 27th, 2008, 9:07pm » |
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Suggests that you're running rich and ECU is trying to correct - look at the data generated: are both LONGFT readings less than -20%?
Could be MAF: check also the enhanced data - look for MAFV - should be around 0.6 to 0.7 at idle.
Is MAF clean?
Got any particular problems or was it just picked up as routine scan?
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shaun
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shaun
Posts: 492
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Re: obd2 codes
« Reply #2 on: Jul 7th, 2008, 7:58pm » |
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just a routine scan 
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