Car idles funny with a/c on!!

I just fixed my A/C system and converted to R134. When I’m driving A/c is fine. When I stop it kinda acts funny. It normally idles at 700 to 900. With the A/c on it drops to 200 Rpm and then kinda fulcautes around, it drives me crazy. How would i fix this, where i stop with a/c and the car idles normally???

If I’m sitting, it will flucuate in the same manner as yours with the AC on.

Check the pulleys and belt tension. Other than that, I wouldn’t know. Good luck

I think that’s pretty normal, considering the A/C draws a lot of power (at least I think it does). I think you’ll notice that your ride reacts to acceleration a lot slower with the A/C on too.