94 toyota pickup V6 3.0 engine. All of a sudden engine starting running really rough. Changed spark plugs and roter/ distributer cap. Still runs rough, and then engine idiot light came on. Any ideas what's wrong and how to fix it.

 

Check you CEL aka idiot light

Start at post #3
https://www.yotatech.com/forums/f116...es-obd1-91186/

Also did you use Bosch parts? A lot of Toyota’s of our vintage don’t like those.