DFI and ECM Discuss all aspects of DFI (Digital Fuel Injection), ECMs (Electronic Control Module), scanners, and diagnostic equipment. Fine tune your Third Gen computer system for top performance.

speedometer signal help

Thread Tools
 
Search this Thread
 
Old Dec 3, 2009 | 01:41 PM
  #1  
stage20's Avatar
Thread Starter
Supreme Member
iTrader: (3)
 
Joined: Jan 2004
Posts: 2,311
Likes: 0
From: p'cola FL
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
speedometer signal help

97 model lt1 v8 instrument cluster.
i have had a speedo sensor hooked DIRECTLY to the back of the speedometer and works great.
im changing my setup and need an adapter.
my old setup was a 4000 (4 pulse) AC sine wave signal.
trying to order an electronic adapter and im being told that i need a square wave signal.

the AC sine wave ive been using is a 2 wire setup.
the square wave setup is a 3 wire setup.
can a fellow third gen guy help me out?
the guy im ordering my parts from said my speedometer shouldnt even work since it doesnt have a proper power, ground and signal connection.
what do i order?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
$750 L98
LTX and LSX
10
Feb 1, 2025 02:25 PM
InfernalVortex
Electronics
10
Apr 20, 2021 11:31 AM
TMZIrocZ350
Engine/Drivetrain/Suspension Parts for Sale
1
Oct 7, 2015 12:09 PM
JSDaddy189
Interior Parts Wanted
8
Oct 6, 2015 02:22 PM
lewandom
Electronics
2
Oct 1, 2015 08:15 AM




All times are GMT -5. The time now is 03:36 AM.