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Discussion Starter · #1 · (Edited)
The problem is that the car idles rough with the A/C on. This what I mean
When the A/C is turned on, it idles fine. When the compressor cuts off, the idle goes down to 200 RPMs sometimes. It bounces a few times a slowly goes back to normal idle. When the compressor comes back on, it's fine again.

1. I checked all of the vacuum lines and there were no leaks. I changed all of them just to make sure.

2. The IAC, AAC, as well as that block that they're connected to are all brand new. Nissan sells the aluminum block that those items are attached to as a unit.

With the A/C off, the car runs and idles at 850 with no problems

Any ideas as to what's causing this?
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