Sorry if this has been posted.
My 2013 T&C just turned 100k miles and started missing (Surging). check engine light comes on when it's really bad under load with a P0302 code. Sometimes it misses at idle almost always under load.
Normally I would just replace the coils and plugs but because of...
I previously posted about this vehicle and CV issues. That is apparently resolved.
The new issue is transmission function apparently related to a carburetor upgrade I did. I have replace the original Mikuni with the appropriate Weber carb. I had some issues with connecting the tranny kick-down...
Got a 400 rpm, up and down, rhythmic surge that occurs ONLY when the AC is on.
I have a new PCV valve. New air filter. Always use quality gasoline.
Should I clean the throttle body and maybe the Throttle position sensor?
No codes being thrown.
Everything else good.