Hi everybody just looking for schematics wiring diagrams for a 1994 Corvette Base Model .Looking to bypass CCM with a signal generator to pcm to enable fuel and spark.
Hi everybody just looking for schematics wiring diagrams for a 1994 Corvette Base Model .Looking to bypass CCM with a signal generator to pcm to enable fuel and spark.
just so you know you can switch one bit (and 2 bytes of checksum) and your ecm will no longer care about that signal.
the tools to do so are free on my site (see my signature)
CCM controls starter relay on y-bodies, so it will take a little extra effort to rewire the starter to the ignition switch.
Going with the signal generator a 40-60hz signal will make the pcm happy.
kuro I have bypassed the start relay already and purchased the 30-50Hz generator with 30-50 alternative signal and cannot dial in which wire at pcm to cut and splice in the signalOriginally Posted by kur4o
Layman's term Please and Thankyou I am a Newb to flash and programming but love fixing cars it is my Trade .I have no cert's but been surviving in the Industry for 10 plus year's as I was taught from a young age and mentored by my step dad an ASE Master Tech .Only Issue is like almost all Tech's I see are not good with DVM and chuck part's at it .Not my style
Please Help YOU GUYS ROCK
The signal goes to pcm pin A25[red connector]. Make sure it is 0-5v signal.
kur40 Do I jump off the pin if their is no wire in either location specified such as A -19 on 93 and A25 on 94.Apologies in advanced im sure you have answered this a million times......
Just feed the signal there. If there is no wires put a new pin in the connector.
Posting Permissions
Reply With Quote
Bookmarks