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Re: Determining the cause of excess fuel
Posted to Technical Discussion Forum on 11/14/2011 22 Replies

Here are reading that I just took as the engine warmed from a cold start.

Cold idle after 1 minute:

HC- 632 ppm

O2- 1.76%

CO- 8.3%

CO2- 9.26%

Warm (ECT- 130F), 1100rpm, surging (open loop):

HC- 3000+

O2- 6

CO- 1.5

CO2- 9.7

Hot idle (close... Login to read more.

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