I have a 1981 corvette, where is the plug in for a computer to check problems, my check engine light stays on. thanks

lights must be connected to a circuit that does not run thru ignition switch.

could be a bad brake light switch which is mounted near the brake pedal under the dash try adjusting the plunger which contacts the pedal maybe its on going in far enough otherwise replace the brake light switch

you have to bleed system

what you could start with is checking to see what trouble codes are being logged for this vehicle...if the engine light stays on, it means the ecu is registering a fault......by the means of a trouble code...now the trouble code doesnt tell you how to fix it, but it does give you the direction to go down...judst wondering if you have tried to obtain the trouble codes

Start with dirty fuse connection and then look for mouse wire damage

You would get the correct carburetor instead for electronic computurized controlled carbs will not work on a 1981 Corvette

I would ahve the alternator tested to see if it was bad first, if so I would replace it and see if that improves your choke situation. If the alternator is not putting out enough voltage it can affect other systems in you car including an electric choke system.

You got a check engine light viewing. If so get the shop manual make youself a jumper wire and jump the terminals it tells you to jump and count the flashes for the codes. The ECU/ Brain terminal is under the ash tray. If there are no codes or a check engine light welcome to the wondeful world of being a Corvette owner I 've owned the same car since 1981.
Basically, check the idle,you may want to replace wires, Distributor cap and rotor. Thats worked for me in the past. Once the PCV valve was stuck. Pull it out and shake it if it rattles its fine. You can blow thre it to has to accept air one way but not the other. The shop manual will tell you to do the same.I believe they may go a step further and recommend an oil change and minor cleaning of the carb. I use mine for shows and because I don't run it regularily I get the same problem. I usually let it run for a few hours (ideling of course) lol... and it works itself out . Keep me posted

Engine Specifications

Type ohv V-8
Displacement, liters/cubic inch
5.7/350 Bore X stroke, inches 4.00 X 3.48 Fuel management
1 X 4-bbl. Horsepower @ rpm
180 @ 4,200
Torque @ rpm, pound-foot
280 @ 1,600
Published Performance Numbers
Acceleration 190 hp, 4-speed manual
0-60 mph, second
8.1
0-100 mph, second
NA

Theres not enough information, sorry cant help you..