Trouble codes

[1982ElCamino]

Hello everyone I’m new to the gbody family I own a 1982 El Camino v6 231ci
Lately I’ve been having problems with it I’ve own the truck for about a year and a half now and I’ve rebuilt the carburetor twice. Right now I’m fight codes 21.) Throttle Position Sensor Error. 24.) Vehicle Speed Sensor Error. And a code 45.) Oxygen Sensor Error (Rich Condition Indicated). The last time I’ve changed my carburetor I put a new TPS and that was about 5 months ago. Any advice on these codes will help

 

[Clone TIE Pilot]

Did you adjust the new TPS? They have to be adjusted anytime you replace them or adjust the idle speed. Its best to do it with the special TPS adjusting tool and a OBD1 scanner to read the sensor output. In a ditch you can use a disposable pen cap to adjust the TPS. Also check the reference voltage to the TPS.