Wiring Harness?
Thread Starter
Drifting
Joined: Jan 2003
Posts: 1,894
Likes: 3
From: Reading PA.
Wiring Harness?
I bought my 88 as a Project Car and im turning it into a Street/Strip Car. The previous owner was going to get rid of the Mass Air and Change it to a Speed Density unit. Anyway the bottom line is the Wiring is a mess in the Car. I Started to label the Connectors under the Hood and thought it's missing the Connectors for the Auto Trans since it was originally a 4+3 car. But i'm switching it over to the 700R4 so I guess I need a Wiring Harness from a Automatic right. Anyone shed any light on the subject. Happy Holidays Pipe
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Depending on how "bad" it all is an option might be to pick up a complete engine/tranny harness from these guys : http://www.painlessperformance.com/
Thread Starter
Drifting
Joined: Jan 2003
Posts: 1,894
Likes: 3
From: Reading PA.
I was over in the Parts section of the forum some guy is parting out a 87 the wiring harness should be the same? Hey Pete how are ya? changed over the avatar got rid of Bob Curran and who's that one of the NY. Dolls? Pipe
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Found that freaky pic on yellowbullet.
Harness should be real close. I think 87 was the last year for the 9th injector, so you may have a connection you won't need.
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
'88 was the last year for the 9th. Those 80's harnesses seem to be nearing the end of their life cycle as the plastic connectors are crumbling and wires are a real pain to get "clean" enough to solder/crimp.
Thread Starter
Drifting
Joined: Jan 2003
Posts: 1,894
Likes: 3
From: Reading PA.
I would like to install the FAST fuel injection system in the car when the $$ become available. Then I could do away with all that crappy wiring. Does the Fast engine harness merge with the existing car wiring? And what happens to the cars existing computer? Is there a jumper harness to connect the two or what? I would think you would need it to operate certain functions of the car right? Pipe
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
'165 ECM uses same input for O/d control and TCC ( terminal 19 ) See pic
Just need to supply 12V; key on to brake switch then to trans terminal.
Run a wire from trans and join to redundant O/d relay control wire ( tan / blk) .
And a auto memcal in the ECM
The P/N switch for the shifter you just extend the wires from the clutch safety switch
Or you can take the ECM out of the picture all together and have the TCC lock up automatically in 4th gear and/or with a man over ride
See
http://forums.corvetteforum.com/c4-t...ts-wiring.html
Last edited by vetteoz; Dec 25, 2010 at 08:25 AM.
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Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
If the FIRST ECM had no provision for TCC control then you would have to operate it as per TCC link in post above
You are aware the FIRST ECM / wiring harness is intended for retro fit into cars without a ECM .
Your stock ECM is more than capable to run the FIRST intake.( suitably tuned ); same as guys who install
the HSR or MR intakes
If all you wanted to do was tidy wiring up then you could get standalone '165 MAF engine harness ( cheaper )
and use your stock ECM
Last edited by vetteoz; Dec 25, 2010 at 08:41 AM.
Thread Starter
Drifting
Joined: Jan 2003
Posts: 1,894
Likes: 3
From: Reading PA.
Thanks for all the Reply's Vetteoz i'll have to read over your post a few times till it sinks in. I'm not very good with Wiring. The Motor thats going in is a pretty stoudt 383 all forged w/brodix and mini ram. Thought that it might be easy to tune with the FAST XFI system also I can pick up the whole system for less than $2,000 Pipe
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Worst case you need a new engine harness
http://cgi.ebay.com/ebaymotors/TPI-M...Q5fAccessories
