I was working on an 86 Caballero with the CCC system at work the other day. Well let me first say that back in the day, jumping A to B was the extent of diagnostics. So anyhow, my partner says to me ( He arranged the job ) scan that thing and see what kinda data, blah, blah, blah. I says " do what? you can get serial data on computer carbs? " He looked at me like I was dumb, anyhow like I said back in the day you jumped A to B read the codes. So long story short I dug out my OBD 1 connector for my snap on scanner and sure enough - SERIAL DATA!

Ok so on to the question - I got my 84 Firebird from my brother, he had already begun removing the computer controls when I got it sooo.... I've been reading about megasquirt and reading about DIY proms on this site but I've not read anything about - Would using a CCC computer to build my own custom TBI work? A mixture control solenoid is the same as an injector in my book, right? It is a feedback system after all and since the computer is in my 'bird unused.... that's a lot cheaper than a megasquirt or even a TBI computer.

thoughts?

EDIT - the only thing I didn't like was the lack of a block learn data value on the scanner - does CCC even have that capability? is it a PID ( custom chip? ) I have to activate to be able to see?

 

The CCC carb ECM will NOT work for a TBI setup. No way, no how. Considering at WOT the mixture control solenoid is shut off completely, etc.

TBI ECMs are less than $25.00 in my area. I paid $15.00 at a local junkyard for a PCM out of a 1995 TBI Fullsize van for my MAF TBI project.

Serial Data is nothing new. My 1988 Cadillac with the Vin9 carbed 307 had serial data. The CCC carb ecm does not even calculate BLM readings, etc. It is not needed for their operation.

 

yea i know its not new, just never realized that the carbs have it. FOR EXAMPLE Some OBD 1 Fords DO NOT have serial data and they are port fuel injected

anyhow... just bench racing and this computer is here now in my lap... $25 is cheap enough I won't waste my time with it, thanks for confirming the lack of a block learn though.

as far as bench racing goes - if it can be programmed off it can be programmed on right? re - the mixture control solenoid.

the only reason i considered such a thing is my 2004 Harley has an Open loop fuel injection that is simple as simple can be. I figured I could make a very simple TBI controller with feedback control and still be better off than a carb - this would go on a 67 Jeep mind you.