Need C4 wiring
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
You can pick up a GM Shop Manual on eBay for @ $50
Once you learn how to use it, it is the best manual you could ever want. I love mine, and just used it to rewire my under dash, firewall bilk head and to a new XFI engine management system.
Once you learn how to use it, it is the best manual you could ever want. I love mine, and just used it to rewire my under dash, firewall bilk head and to a new XFI engine management system.
Safety Car
Joined: Apr 2011
Posts: 3,660
Likes: 22
The electrical book has every drawing in the correct color code and laid out so its easy to read and understand. The flow charts that go with the drawings are detailed and easy to follow...
You can;t expect to sucessfully work on a C4 or newer without the 2 book FSM set.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
with all previous posts, but will mention another option. A subscription to Alldata will also provide the wiring diagrams if you need them quickly and the price is less than $30 annually.
I prefer having the FSM in hand since many jobs require flipping between sections and that is easier for this old grease monkey than the electronic version, but you may feel differently.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
My old shop manual was falling apart from 20+ years of use. I bought a new one and threw the old one away. Then I found out that the electrical diagrams are all black and white, whereas in the old one they were all in color. I guess color is too expensive nowadays.
Team Owner
Joined: Jan 2003
Posts: 20,304
Likes: 240
From: Summerland B.C. Canada
