Re: act sensor help
i've got a couple of books on ford electronics. the act detects ambient temps only. the effects are more pronounced on speed density systems than mass air. if you look at your mass air meter it has two elements, one heater and the other is for ambient temp., just like the act sensor. one of the books conducted dyno test on fooling the act, and it had lil to no effect on the dyno #'s. i have "5.0 ford dyno test" by richard holdener....and i have "ford fuel injection & electronic engine control" by charles probst. right now it's zip tied to the firewall, til i drill a hole in the cai..