Need Help with Voltage Check
Thread Starter
Joined: Dec 2012
Posts: 407
Likes: 10
From: Clarksville,TN
Car: 1989 GTA
Engine: 5.7 w/Paxton
Transmission: 700R4
Axle/Gears: 3.27
Need Help with Voltage Check
If anyone has their ECM laying in the passenger floor board I could really use your help. I need someone to unplug their MAF and then probe B12 at the ECM terminal (green wire) and ground it to the ECM case and post the voltage reading. Help with this would be GREATLY appreciated. Thanks.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: Need Help with Voltage Check
Maybe
http://www.chevythunder.com/fuel%20i...ecm%20#1227165)
ECM key on and running Volt values there
http://www.chevythunder.com/fuel%20i...ecm%20#1227165)
ECM key on and running Volt values there
Thread Starter
Joined: Dec 2012
Posts: 407
Likes: 10
From: Clarksville,TN
Car: 1989 GTA
Engine: 5.7 w/Paxton
Transmission: 700R4
Axle/Gears: 3.27
Re: Need Help with Voltage Check
Maybe
http://www.chevythunder.com/fuel%20i...ecm%20#1227165)
ECM key on and running Volt values there
http://www.chevythunder.com/fuel%20i...ecm%20#1227165)
ECM key on and running Volt values there
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Need Help with Voltage Check
On the tpi maf the signal is based on 5v ref. 5v being the max being 255gps. At idle 9 GPS is .73 v, 11gpis .91v and so on.
Thread Starter
Joined: Dec 2012
Posts: 407
Likes: 10
From: Clarksville,TN
Car: 1989 GTA
Engine: 5.7 w/Paxton
Transmission: 700R4
Axle/Gears: 3.27
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