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Old 06-07-2013, 09:51 AM   #32
Bullet Ride
Cars in Perpetual Repair
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Join Date: Nov 2007
Location: Guelph
Posts: 5,992
So technically this morning I didn't fail!... because I never actually tested the car

The guy at the shop put the machine into diagnostic mode so I could see what the sniffer was reading at idle. I played with my fuel and timing and was only able to get the HC down to 700ish (which is half of what it was before ~1400) while still keeping the CO below 1.0.

I'm pretty much attributing the high HC readings to the lack of ability of my cheap aftermarket cat to oxidize hydrocarbons.

Time for a conditional pass I guess
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