nathans1987
August 3rd, 2011, 04:34 PM
In cos 3 this table is given to help control afr temperature fluctuations i assume? I was thinking tho the pcm takes the iat reading and the ECT reading and uses blend table depending on airspeed to predict cylinder air temp, rather mass so it can give accurate fueling. Unless its there for protection?
That also brings me to my other question in lsx engines from what i have read as temp rises afr leans(which i experience at times to) off which doesn't make sense because air is expanding it has less fuel needs and should be tending rich. Could this be due to fuel temperature? as the fuel warms its expanding and energy potential going down faster than oxygen(cant think of word i want) amount is being reduced??? Or is fuel basically always the same temp when its injected. I don't think there is a table for fuel temp?
Just a novice pondering.
Thanks Nathan.
That also brings me to my other question in lsx engines from what i have read as temp rises afr leans(which i experience at times to) off which doesn't make sense because air is expanding it has less fuel needs and should be tending rich. Could this be due to fuel temperature? as the fuel warms its expanding and energy potential going down faster than oxygen(cant think of word i want) amount is being reduced??? Or is fuel basically always the same temp when its injected. I don't think there is a table for fuel temp?
Just a novice pondering.
Thanks Nathan.