Bryan;
The MAP sensors that I've seen are 3- wire potentiometer types;
depending on which end of the pot is connected to ground and which is
+5V, the output (pot wiper arm) voltage will increase with pressure or
it will decrease with pressure-- your choice.
Regards, Neil Tucson, AZ
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net] On Behalf Of Bryan Savage
Sent: Monday, August 29, 2005 6:21 PM
To: drmayf; Dave Dahlgren
Cc: List Land Speed
Subject: Re: GM 3 Bar MAP Sensor
mayf,
The output is 0-5 VDC, 0 v = 0 bar and 5 v = 3 bar.
Dave, is this correct?
Bryan
drmayf wrote:
> Does anyone have any particulars regarding the use of a GM MAP sensor
(2
> or 3 bar) as a boost pressure measuring device? I have a 5 volt
> reference signal available and can log 0 to 5 volts (more if I use a
> resistor dividing circuit). What does the MAP sensor need? I see
power,
> ground and signal return: what volts does it need?
>
> mayf
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