Calibrate Cobalt elec boost gauge to HPT?
10-30-2006, 04:40 PM
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Calibrate Cobalt elec boost gauge to HPT? I'ts a 0-30 range, 0-5v output (I think). Tapped into the purple wire just like I did for the fuel pressure which works perfect. I set it up as linear, volts/0.1666 + -4 to get it to read about zero at idle. It records over 9.5psi when the gauge is reading about 7psi. Has anyone got the correct setup for this?
10-31-2006, 11:28 AM
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I would check the voltage output of the gauge at idle. Idle should be a slight vacuum, so I'm wondering if the gauge is really putting out zero volts, or some other number.
10-31-2006, 02:10 PM
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Originally Posted by Mark98SS
I'ts a 0-30 range, 0-5v output (I think). Tapped into the purple wire just like I did for the fuel pressure which works perfect. I set it up as linear, volts/0.1666 + -4 to get it to read about zero at idle. It records over 9.5psi when the gauge is reading about 7psi. Has anyone got the correct setup for this?
10-31-2006, 02:43 PM
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Originally Posted by MeentSS02
Have you tried calling the Autometer people and asking for the sending unit's calibration? That's how I came up with the fuel pressure setup...
10-31-2006, 02:44 PM
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Originally Posted by muncie21
I would check the voltage output of the gauge at idle. Idle should be a slight vacuum, so I'm wondering if the gauge is really putting out zero volts, or some other number.