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emissions, denatured alcohol and air pumps

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Old 08-16-03, 04:17 PM
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emissions, denatured alcohol and air pumps

Ok, so my exh. setup is usually a DP, MP and CB.

for NC emssions i put the main cat back on.

failed emissions, with a HC reading of 1324 (limit is 220).

i changed plugs (BUR9EQP), realized i had forgot to reconnect the airpump, and put in 1 gallon of denatured alcohol to 4 gallons of fuel.

retest and my HC dropped to 62! damn.
also, my CO reading was zero (before it was like 24 or something, with a limit of 12, i believe).

so, basically, this is for reference for people with emissions problems. obviously, because i forgot to connect the airpump the first time, i have no idea the extent to which the alcohol played in helping me pass.
Old 08-16-03, 04:37 PM
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I'll try this next time.
Old 08-16-03, 05:06 PM
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actually, my CO % reading was originally 3.83% with a limit of 1.2%
after the changes, it was 0.0% (zero)

My CO2 went from 9.4% to 13.3%
Old 08-16-03, 05:54 PM
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I took a hose from my air pump directly to my exhaust. Passed with flying colors
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