wiring up the tach
#1
FD > FB > FC
Thread Starter
wiring up the tach
How do I go about wiring up the tach for my S5 engine that I put in my fb?
In the fb, the tach is connected to the negative wire for the trailing ignitor. I tired connecting this wire to the external tach connector on the fc trailing coils. Didn't work. I later found out that you have to short the check connector for a tach to work through this wire. However, I removed this connector when modifying my harness to put it in my FB.
How should I correctly connect my tach?
In the fb, the tach is connected to the negative wire for the trailing ignitor. I tired connecting this wire to the external tach connector on the fc trailing coils. Didn't work. I later found out that you have to short the check connector for a tach to work through this wire. However, I removed this connector when modifying my harness to put it in my FB.
How should I correctly connect my tach?
#2
I'm a boost creep...
Join Date: Jan 2002
Location: Auckland, New Zealand
Posts: 15,608
Likes: 0
Received 8 Likes
on
8 Posts
Re: wiring up the tach
Originally posted by hornbm
I later found out that you have to short the check connector for a tach to work through this wire.
I later found out that you have to short the check connector for a tach to work through this wire.
The tacho output on the trailing coil is the yellow wire with blue stripe.
#3
FD > FB > FC
Thread Starter
ok now the aftermaret tach connector is yellow and blue, just like the wire comming from the coil itself. I assumed that they were the same wire.
Is this the same wire? It makes me wonder if the fc and fb tach's work differently. The yellow and blue wire is a grounding signal right?
Cou;d I connect my tach to one of the negative leads for the coils? If so which one should I do? Both?
Is this the same wire? It makes me wonder if the fc and fb tach's work differently. The yellow and blue wire is a grounding signal right?
Cou;d I connect my tach to one of the negative leads for the coils? If so which one should I do? Both?
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM
toplessFC3Sman
2nd Generation Specific (1986-1992)
6
03-20-18 01:54 PM