need 2 now which wire is the rpm 1 on ecm
#2
Launching!
Joined: Mar 2005
Posts: 203
Likes: 0
From: MORGANTOWN KY
Originally Posted by joejoe
hooking up a window switch and i need that wire
#7
Don't grab the signal at the PCM -- grab from the instrument cluster.
There is an inverter or something between the PCM and the gauge. The signal at the PCM wouldn't drive my Megasquirt at all but the white wire on the cluster would.
There is an inverter or something between the PCM and the gauge. The signal at the PCM wouldn't drive my Megasquirt at all but the white wire on the cluster would.
Thread
Thread Starter
Forum
Replies
Last Post
lxcoupe
Tuning, Diagnostics, Electronics, and Wiring
17
Aug 26, 2015 05:00 PM
Nimoryan
GMT 800 & Older GM General Discussion
0
Jul 5, 2015 03:50 PM



