C4 ECM Harness questions
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,033
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From: Tracy California
St. Jude Donor '05
C4 ECM Harness questions
Anyone ever try to remove the computer harness from a C4? I wanted to switch to a stand alone system but have run into a snag. It appears that the computers harness is tangled with the accesory harness. Why did chevy do this? How much work is involed separating the two?
KM
KM
Burning Brakes
Joined: Apr 2002
Posts: 1,126
Likes: 0
From: Cleveland OH
Re: C4 ECM Harness questions (88-406)
Anyone ever try to remove the computer harness from a C4? I wanted to switch to a stand alone system but have run into a snag. It appears that the computers harness is tangled with the accesory harness. Why did chevy do this? How much work is involed separating the two?KM
I'm using one of his harnesses on my upcoming FAST installation, and after speaking with him at length on the phone, he really knows his stuff and has created a real quality product.
Good luck,
Ron
Thread Starter
Burning Brakes
Joined: Oct 2001
Posts: 1,033
Likes: 0
From: Tracy California
St. Jude Donor '05
Re: C4 ECM Harness questions (RonRed89)
I've thought about the adapter harnesses, but decided against them because my OEM is a littlt beat up and I don't think they support all the stand alone features (Seq,etc..)
KM
KM
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: C4 ECM Harness questions (88-406)
I pulled my 85's harness @ 1 month ago, I un taped the two wads of wires pulled the engine management "wad" thru the firewall with no problems.
I looked into stand alone ECM's and the Haltech appears to "piggy-back" the factory harness but I chickened out and just put mine back in after cleaning it up.
I looked into stand alone ECM's and the Haltech appears to "piggy-back" the factory harness but I chickened out and just put mine back in after cleaning it up.
