LS1 fan wiring ?
01-19-2011, 08:37 AM
#1
Member
Thread Starter
iTrader: (5)
Join Date: Apr 2004
Location: Va beach
Posts: 400
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 IROC,
Engine: 370 LSx With Boost
Transmission: 4L80E
Axle/Gears: S-60 with 3.50s
LS1 fan wiring ?
Ok my car was orginally wired by Hawks. When i first put the new motor in the fans would not come on so I hooked them up to a switch. How do i wire it all back up? i hate wiring BTW...
01-19-2011, 01:12 PM
#2
Supreme Member
Join Date: May 2000
Posts: 2,963
Likes: 0
Received 3 Likes
on
3 Posts
Car: 1982 Z28
Engine: LS1
Transmission: T56
Re: LS1 fan wiring ?
Find the Fan-1 and Fan-2 control pins on your PCM pinout, and connect each to the ground side of each fan relay.
Or just take it back to Hawks.
Or just take it back to Hawks.
01-19-2011, 01:19 PM
#3
Supreme Member
iTrader: (24)
Join Date: Jun 2005
Location: NC
Posts: 7,890
Likes: 0
Received 67 Likes
on
49 Posts
Car: 92 Firebird
Engine: Supercharged 6.0
Transmission: T56
Axle/Gears: 8.8 3.73
Re: LS1 fan wiring ?
+1 to take it back to Hawks
If you must fix it yourself, use this
C100 G8 is for 90-92 cars. Your 87 has the fan relay fuse at C221 pin D assuming Hawks didnt move it elsewhere. For manual override Id still leave the PCM control but tee into those wires to a two pole toggle switch to ground. IGN on, switch off fans operate automatically under PCM control. IGN on, switch on, fans run continuously until IGN is turned off
If you must fix it yourself, use this
C100 G8 is for 90-92 cars. Your 87 has the fan relay fuse at C221 pin D assuming Hawks didnt move it elsewhere. For manual override Id still leave the PCM control but tee into those wires to a two pole toggle switch to ground. IGN on, switch off fans operate automatically under PCM control. IGN on, switch on, fans run continuously until IGN is turned off
01-19-2011, 07:26 PM
#5
Member
Thread Starter
iTrader: (5)
Join Date: Apr 2004
Location: Va beach
Posts: 400
Likes: 0
Received 0 Likes
on
0 Posts
Car: 87 IROC,
Engine: 370 LSx With Boost
Transmission: 4L80E
Axle/Gears: S-60 with 3.50s
Re: LS1 fan wiring ?
The car was wired by hawks... 6 years ago, lol. Thanks for the help. I'll let you know how it goes.
Thread
Thread Starter
Forum
Replies
Last Post
Hellbillydeluxe
Tech / General Engine
10
09-22-2015 09:58 PM
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM
