Air/Fuel way off need help
09-09-2007, 11:30 PM
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Air/Fuel way off need help I got my car dyno'ed yesterday and here is the sheet. Something is deff. wrong here. The guy had the meter in my tailpipe. Is this the reason it is off. I called my tuner and he said it shouldn't be that way. Any help will be appreciated. My car doesn't have any ping's or anything like that. It seems to be running great. 
09-10-2007, 01:29 AM
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Don't worry too much about the A/F reading. It is OBVIOUSLY wrong. If your A/F was that bad, your motor would have probably blown up on the dyno. In the unlikely event that you didn't melt a piston, you wouldn't have dynoed over 300rwhp with that air/fuel ratio.
09-10-2007, 07:58 PM
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Originally Posted by gametech
Don't worry too much about the A/F reading. It is OBVIOUSLY wrong. If your A/F was that bad, your motor would have probably blown up on the dyno. In the unlikely event that you didn't melt a piston, you wouldn't have dynoed over 300rwhp with that air/fuel ratio.
Edit... your car has cats! a tailpipe wideband will not read correctly regardless. Widebands need to be installed before the cats to work correctly.