Reduced engine power & van dieing

Have you taken it to get the codes read? If not then goto any auto parts store and they will do it for free, might not answer all your question but might give you a place to start.

Hello I have a 2008 chevy uplander 3900 it's says reduce speed I drove it home it says starting g disabled .I put new tps and throttle body on and still says same thing

My up laser is say reduce power n auto zone told me to replace the Throttle body sensor and I’m still having problems