quick wideband lambda question/emissions

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tim_s
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Post Wed Aug 30, 2006 10:34 pm

Can I use my wideband lambda to get the fuelling close enough to get through MOT emissions? The probe is in factory location, at the 2-1 of the exhaust front pipe, reads about 16:1 at the mo, not sure if i should richen up a bit before the MOT? suggestions and experience much appreciated!
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tim
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Ant
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Post Wed Aug 30, 2006 10:53 pm

How is the idle ? if its smooth and stable, I'd suggest the mix is OK, Malcs is 16:1 @ idle and smoother than stock

you may have to tweak the timing to reduce the HC content though, how does she smell? sickly sweet is high HC( as a rule, always exceptions ), no real noxious stink, probably ok and around 440 ppm.

if you're worried, take the laptop with, and ask him to test the emissions manually 1st, then log on to test

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tim_s
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Post Thu Aug 31, 2006 7:27 pm

well it got through the emissions no worries, were actually quite low. thanks for the advice! on with the big cams i say! sadly failed on rear subframe bushes, front drop links and handbrake though :(
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2.1 318is, MS, LPG. 200bhp, 175ft/lbs GONE!
Boxster, e46 m3, e36 sport touring and alpina B3 3.0