Map Voltage from ALDL

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Dec 30, 2004 | 06:34 PM

jasonrmorrow

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Map Voltage from ALDL

How can i read the map voltage on my OBDI vehicle ?? What pins do i probe to get a reading. And what is a normal reading, i think i have a vacuum leak. It is a 92 Camaro TPI. Thanks

Dec 30, 2004 | 07:08 PM

kevinc

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Joined: May 2000

Posts: 2,963

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Car: 1982 Z28

Engine: LS1

Transmission: T56

Moates software, a laptop, and a cable will put you in business. Check the DIY-PROM forum.

Dec 30, 2004 | 09:34 PM

Grim Reaper

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From: The Bone Yard

Car: Death Mobile

Engine: 666 c.i.

Alternatively, you can read voltage off the sensor itself.

Dec 31, 2004 | 02:12 PM

jasonrmorrow

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Thats what i thought i could do, do you know what the reading is supposed to be ?

Dec 31, 2004 | 05:49 PM

Vader

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You can try this as a starting point for a 1 Bar MAP:

Jan 1, 2005 | 03:18 PM

jasonrmorrow

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Wow thanks vader that helps a ton, i can read terminal a and b on the map sensor itself to get the voltage i know i should be around 15 or so with my altitude and based on my carbureted engine.