Here's the situation that I am in.....I....hold on...Let me start by saying that I know NODDA!!!!NODDA!!!....about Lt1s,so please bare w/me here.
OK.....I sold a 69 convertible to a guy,and I am doing a custom build on this car for him.I bought a 93 LT1,low miles,from a rolled over cop car,and a 700R4 that I had rebuilt.I got a ECM,but it is the 94-96 #8051.The wiring harness that came w/the car is a brand new Painless,but for the 92/93 Corvette #278 ECM,so the plugs to the ECM are different.
I contacted a company that said that they had the #278 ECM there,and could burn the chip to remove the VATS,and I TOLD THEM THAT I HAD THE #8051 ECM for exchange,so I sent mine in as a core,then a guy calls me,and wants a stupid amount of difference because I didn't have the #279 ECM as a core.We have a following out,and I have my original ECM back.Minus the shipping both ways.
I call another company,and the guy tells me I may have a late 93 for the 94 run,and they are different.He has me check the throttle body plugs,and the trans,cause the 700 wasn't offered in 94,I guess.It is a 700R4,but the engine is for a 94.He can sale me wiring harness,and another wiring harness for the 700R$ to be able to lock it up.More money,and I am going to be building this car for free when done.I am WAY into this build money wise,and I don't have the funds to keep dumping into this car,and the customer is getting impatient.
I call Painless,and he says I have to get the above,and the seperate wiring harness to lock up the 700R4,or find a #278 ECM.I haven't been able to find the #278,and.....if I do.....is my wiring harness going to plug into the throttle body?By what the one guy said....the plug ins are different,so even w/the 92/93 ECM.....am I going to be able to plug in the wiring harness?
What are my options here?I need this to be as cheap as possible.
Is there the possibility of finding a company that can splice the correct ends onto my wiring harness to fit the #8051 ECM?And the throttle body?
I need some suggestions here,and HELP...please.
Thanks in advance!
Kevin Gilliam

 

well to tell what tranny it is a pic of the plug would help. a 700r4 has a square 4 pin connector, a 4l60(non electronically controlled which is the correct tranny for the application and harness you have) has a 5 pin connector and the 1994 4l60e's have a 12 pin connector and the 95 and up have a 13 pin connector. as far as the throttle body the 94-97 lt1s have a 4 pin flat connector for the IAC(on the bottom of the tb) and the TPS has a round 3 pin. i know the older tpi engines had a flat 3 pin for the TPS and a square 4 pin for the IAC similar to the 700r4 plug.

 

Thanks for the reply.it is a 700R4.The guy that I bought the engine/trans from owns a trans shop,and rebuilt everything.I also,ran the numbers to make sure,and it is a 700.I will look at the trottle body,but when I was on the phone the other day w/the guy....believe it is the 94 model.That's when he asked me to make sure of the trans,and said that w/that ECM #8051....I would have to have a seperate harness to lock up the 700.

 

Are you looking for the 1992-1993 ECM? The 9278?

That ECM was also used in Camaros, Cadillacs, Buicks and Firebirds.

Someone on here told me I was crazy, but I found one from a Camaro and laid the two side by side looking at the boards. They are the same if the service number is the same. The prom is the difference.

Try E-bay, under LT1

 

By what I have been able to learn....the ECM is the same for the Corvette,and the 93 F-bodies.I didn't know about the cadi's.

 

i think this is what you need

http://www.fuelinjectionconnection.com/gpage.html

 

Thanks for the plug.....I will call them here in alittle while.I really need to get this going,and get this car gone......