Knock sensor wire help
Thread Starter
Member
Joined: Jul 2002
Posts: 412
Likes: 0
From: Brick, NJ
Car: 1987 Z28
Engine: 350
Transmission: Auto
Knock sensor wire help
how are you suposed to tell the diffrence between the knock sensor wire and the fan switch wire, they both have the same connector?
Joined: Jul 2002
Posts: 230
Likes: 1
From: Smithfield, VA
Car: 85 Tojan
Engine: ZZ4
Transmission: T56
Axle/Gears: 9", 3.50
Color is your best bet. Either check a helms manual (which is a must have) or go to the spark control module which should be located next to the brake booster on a bracket on the firewall. find the wire color that matches the one on the knock sensor connetctor. In my 85 it was blue. I don't know if it's the same in 87.
Thread Starter
Member
Joined: Jul 2002
Posts: 412
Likes: 0
From: Brick, NJ
Car: 1987 Z28
Engine: 350
Transmission: Auto
the ESC has a black and a white wire coming out of it and the knock and fan wire is black and the other is white so that doesnt help and its not in the manual what color it is
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 20
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
With key on, and a/c off, ground the wires one at a time - the one for the fan should make the fan come on when grounded, if I remember correctly.
Thread
Thread Starter
Forum
Replies
Last Post
