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run lean or rich

   
Old Jun 1, 2006 | 04:23 PM
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redrascal's Avatar
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From: Beaumont,Tx
run lean or rich
Whats the best way to determine if you are running lean or rich? Othere than pulling the plugs.
 
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Old Jun 1, 2006 | 04:36 PM
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lean= you will get a pinging noise under a load. You can run lean an not get the ping.

Rich= black exhaust smoke when accelerating. Best way to check is on a dyno.
 
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Old Jun 1, 2006 | 06:32 PM
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Monitor your upstream O2 sensor data.

Steve
 
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Old Jun 1, 2006 | 07:29 PM
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does it mean you are runniing rich if you have like a black ring around the tip of the exhaust??
 
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