ndl1112

iTrader: (1)

Hi, I've been experiencing this problem ever since I bought my 2007 350z. It currently has 82k miles on it. As soon as I turn on my a/c and the compressor kicks on my idle drops a bit and slowly creeps back up rather than it compensating immediately like I've seen other Z's do. I have a video to show what I'm talking about. If anyone knows what could be causing this please let me know because the nissan dealership didn't even know because they came back and said that its a normal thing that is supposed to happen. What a waste of a diagnostic fee...
Here's a youtube link to the problem i'm experiencing.
350z idle issue

zakmartin

Assuming the dealership did a high side / low side pressure test and found nothing wrong with the system during the diagnostic scan, I'd go with their diagnosis that it's normal. My car (2008) doesn't immediately jump back to low idle when the engine is warm and the A/C compressor kicks in. If your engine is lugging or stalling when the A/C clutch engages, then clearly there's a problem. Otherwise, I wouldn't worry about it.

Edit:
I just watched the video. That looks completely normal to me.

travlee

iTrader: (8)

I think you are waisting your time, hell my big v8 dips in rpms when i turn on the ac. Its a non issue

coletrickle74

iTrader: (1)

This. More load on the engine, of course it will dip initially.