NTC sensor fuel changes - Saab 900 Bulletin Board - Saabnet.com
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NTC sensor fuel changes
Posted by aka oldsaab (more from aka oldsaab) on Tue, 22 Oct 2013 16:05:25
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Hello, curious if anyone knows if the change in fueling on the NTC sensor is analog or digital? Meaning once the resistance in that guy starts changing does the fuel duty cycle change with it OR does it just have two settings, one below a resistance and one above?
I ran into a car with a hopped up APC and a couple of resisters in series on one side of the NTC too. making it run richer without, I believe, add more fuel to compensate without changing ECU or injectors. oh yes it did fail smog until I found them. HC was not happy even with a new California CAT. after removing them (I had already swapped in a stock -599 APC) the numbers were excellent, lots of head room even...
pretty trick way to get a small bump but want to know if it's graduated or just over/under.
thanks.
posted by 72.199.237...
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