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ed_ma61 Forums Junkie Location: Lost in the K hole Registered: May 2002	simple MAP sensor based switch... Wed, 10 September 2003 05:15 I know shit all about electronics, so thought i'd post this to see what people thought... im after a circuit which i can hook up to a 1bar MAP sensor, that will let me switch on a device when the output of the MAP sensor hits a certain voltage. the point at which the device is switched on needs to be adjustable for tuning purposes (ie an extra injector needs to be switched on at a given manifold pressure - but the pressure threshold at which the injector will switch on needs to be adjustable so i can tune the damn thing) with that in mind - i found this: http://minimopar.net/perf/eepc-fuel-map.html heres the theory: http://minimopar.net/perf/eepc-basic.html what id like to know is: obviously that circuit is designed to switch on up to 4 injectors sequentially. it seems logical enough that it should be able to switch only one injector, and that it is adjustable. is that correct? will this cicuit do what i stated in the opening paragraph? (and fwiw - i wont actually be switching an injector directly with this circuit, but rather a relay, which will then switch the injector - i dont think this matters really, but thought id mention it just in case it does) and secondly, this circuit is based on a 2bar map sensor with an output of 0-5v. im guessing a 1bar sensor also has an output of 0-5v and thus can allso be used sucessfully (on an NA engine) anyone know a CHEAP supplier of 1bar map sensors that would suit this circuit? thanks y'all cheers ed [Report message to a moderator]

	Subject	Poster	Date
	simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 05:15
	Re: simple MAP sensor based switch...	JDM hachi	Wed, 10 September 2003 05:26
	Re: simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 05:35
	Re: simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 05:54
	Re: simple MAP sensor based switch...	oldcorollas	Wed, 10 September 2003 06:25
	Re: simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 07:14
	Re: simple MAP sensor based switch...	oldcorollas	Wed, 10 September 2003 08:30
	Re: simple MAP sensor based switch...	oldcorollas	Wed, 10 September 2003 08:42
	Re: simple MAP sensor based switch...	Cool1	Wed, 10 September 2003 08:39
	Re: simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 13:12
	Re: simple MAP sensor based switch...	Cool1	Wed, 10 September 2003 09:02
	Re: simple MAP sensor based switch...	TA22-3SGTE	Wed, 10 September 2003 09:39
	Re: simple MAP sensor based switch...	thechuckster	Wed, 10 September 2003 11:12
	Re: simple MAP sensor based switch...	ed_ma61	Wed, 10 September 2003 13:20
	Re: simple MAP sensor based switch...	Cool1	Thu, 11 September 2003 07:46
	Re: simple MAP sensor based switch...	ed_ma61	Thu, 11 September 2003 09:14
	Re: simple MAP sensor based switch...	Cool1	Thu, 11 September 2003 09:22
	Re: simple MAP sensor based switch...	ed_ma61	Thu, 11 September 2003 09:38

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