Hey folks, I remember reading somewhere that 81 Corvette's have computers in them, is this true? If so, what does it control? Thanks in advance folks...

 

All '81 engines has a carburetor with the "Computer Command Control" unit that originally came with the '80 LG4 305ci California only Vettes. The 1981 version automatically adjusts fuel mixture and ignition timing up to like 80 times per second.

 

:iagree: It also controls the smog pump valves, and the torque converter in an automatic

 

:iagree: :yesnod:

 

It controls the mixture on the primaries only & adjusts it 10 times/sec, based on coolant temp, throttle position, manifold vacuum & the O2 sensor readings. The secondaries work exactly as non-computer controlled Q-jets do.
:cheers:

 

Is it possible to and what effect would it have unplugging it?

-Rick

 

Yes, it can be unplugged, but that will trigger the Computer Command Control's imbedded satellite transceiver which will send an automated signal to General Motors and the Federal Environmental Agency notifying them of your breach of the 1981 environmental regulations by the disconnection of the unit. EPA agents will track your vehicle with the assistance of GM's On Star, and eventually a black Suburban with Government agents and GM officials will show up at your door, most likely at 1 AM, and take you into custody for interrogation. Your Vette will also be impounded, dismantled and combed for evidence. I hope you like bright lights in your face, because they will use them while pumping you for your reasons for disconnecting the unit. Once you crack they will take advantage of the opportunity to plant hypnotic suggestions that will reprogram you, turning you into a staunch environmentalist. Suddenly you will wake in your own bed, refreshed, and you will find that your Vette has been replaced with an "EV II", GM's prototype for it's next generation of electric vehicles. Oddly, it will never occur to you to question the change in transportation, and instead of going on cruises and to classic car shows with your Vette buddies, you will be content with spending your weekends hosting tupperware parties and going to "chick flicks".

I suggest you don't unplug it. Trade it for a '79 like mine.

 

It is possible, but it won't run well. Your primaries will go to full rich, and you will have no advance. If you want to be rid of it you need to change the carb and distributor to non computer controlled versions. Plus if you have an auto you have rig up a switch to make the torque converter lock up.

 

:lol: - Big Brother, is that you?

 

:jester

 

I thought the GM guys/Agents were driving Tahoes now. They get better mileage than Suburbans.

 

WHILE WEARING A BAD TOUPE' (is there a good one?) :rofl: :lolg:

 

Silly, a Suburban holds more government bureaucrats and unnecessary GM corporate middle management than a Tahoe. The government is free to waste as many natural resources as necessary to prevent you from wasting them. :flag :chevy


[Modified by Corvette_fetish, 11:30 AM 11/7/2003]

 

Well you can get 3rd row seating in a Tahoe, but you would not have as much room in the back for a mysterious black box. My mistake.