A/C Woes - Opinons/Guidance Welcomed

[tmontague]

Originally Posted by 06YarisRS

How much does your A/C affect idle on the 2ZR? Mine seemed to labour slightly, until I removed a bit of the refrigerant. It still slows a few rpm when I engage A/C. I'm getting the impression that A/C systems are more power-robbing than I had initially thought.

The engine definitely has a noticeable load difference on it. For a small 4 banger it is quite a bit of draw on its overall power. I know dyno's online have shown anywhere from 3-6hp draw iirc. On a low powered engine this is a large percentage of the overall power output so it is more noticeable.

I'd purge a bit of your r134 out but I dont think you need to release much