How to make lambda = 1.0000 at idle?
09-13-2006, 01:34 AM
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How to make lambda = 1.0000 at idle?
When I connect a WBO2 the lambda reading is about 1.04. I’ve tweaked my VE tables ($8D) so BLM is 128 and INT oscillates around 128 at idle but lambda is still off a little. How do I tweak lambda? Should I change some mV threshold for the O2 sensor or commanded AFR currently set at 14.73?
The reason I ask this is that when I do emission test HC is a little high and I read that Lambda needs to be accurate down to 1-2 per cent for the catalytic converter to take care of HC properly.
Thanks!
The reason I ask this is that when I do emission test HC is a little high and I read that Lambda needs to be accurate down to 1-2 per cent for the catalytic converter to take care of HC properly.
Thanks!
09-14-2006, 02:31 AM
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If I'm a little lean should I increase the r/l threshold constant below?
One other thing, my blower does the air inject stuff to the mainifold. Perhaps the 100mV constant is wrong? I would be surprised if my blower injects exactly the same amount of air as the stock smog pump. Maybe the air diverted constant should be increased instead of the r/l threshold?
Code:
L8496: FCB 136 ; 600 mvdc, FAST o2 R/L THRES AT IDLE
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