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International Automotive Technicians Network
Re: 95 chevy S-10 EGR function
Posted to Emissions Forum on 1/10/2005

[...trimmed text...]

Hello again Aaron,

Here are the pre/post cat gas readings:

Precat: HC...108ppm CO...54% NO...2083 (co2..14.2/o2.69)

Tailpipe: HC...23PPM CO...01% NO...780 (co2..14.9/02.14)

o2 switch time is 4... Login to read more.