Stupid question: where do you hook up a 2-wire dwell/tach?
09-17-2013, 10:38 AM
#1
Registered User
Thread Starter
Join Date: Aug 2013
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
Stupid question: where do you hook up a 2-wire dwell/tach?
Bought an old dwell/tach for cheap and want to check my idle speed. It has two wires, red and black alligator clips. I hook the red to the IGN terminal in the diagnostic box and the black to...? I dont want to damage the coil so I figured Id ask before just poking around with the lead
(The FSM shows a 3 wire tach)
(The FSM shows a 3 wire tach)
09-17-2013, 11:17 AM
#3
Registered User
Join Date: Jul 2007
Location: 26.3 road miles from the AT (VA)
Posts: 347
Likes: 0
Received 0 Likes
on
0 Posts
Typically red goes to the negative terminal on a coil and the black goes to a good ground. Assuming your engine uses the older style coil and points.
Last edited by wardriver; 09-17-2013 at 11:21 AM.
09-17-2013, 09:37 PM
#4
Registered User
Thread Starter
Join Date: Aug 2013
Posts: 18
Likes: 0
Received 0 Likes
on
0 Posts
09-18-2013, 05:11 AM
#5
Registered User
I have a 22re and an Actron 2 wire tach. Red goes to the IGN diagnostic port and black goes to ground. I believe my Chilton's manual shows how to hook up a tach, I can find the page if you are still afraid to hook it up, but I'm almost certain.
Thread
Thread Starter
Forum
Replies
Last Post
smilen724
86-95 Trucks & 4Runners (Build-Up Section)
13
11-08-2015 04:11 PM
PNW94Runner
86-95 Trucks & 4Runners
3
09-29-2015 02:55 PM
