kelvincheu
Member
I noticed today my CX-5 vibrate a bit when I stopped still when engine was idle. What is the rpm when idle? My gauge reads between 600-700 rpm and I suspect it is too low.
2014 CX-5 Engine Idle Speed
- Thread starter kelvincheu
- Start date
mazdadude
ZOOOOOOOOOM ZOOOOOOOOOM
- :
- '16.5 Mazda CX-5 Touring
kelvincheu
Member
Both cold (park in garage) and heated (driving >10 minutes). Air-con and heater were off.
600-700 sounds right for the automatic. Idle speed is controlled by the ECU and it cannot be adjusted anyway.
Make sure all loads are off(car in park (or neutral), e-brake up, fan set to zero, lights off, heated seats off ect.) and the engine should be pretty darn smooth.
FWIW, when fully warmed up, the 2.0L manual idles at a hair over 500 with no AC and ~650 with AC.
The tach on my 2.0L reads about 700 rpm when not warming up. The speed doesn't fluctuate in any way I can detect when engaging the A/C or switching from Neutral to Reverse. The ECU anticipates the load before the rpm's drop and adjusts the ignition timing/fuel/air delivery to match the anticipated load.
I wonder why yours fluctuates?
My RPM goes up, not down when the AC is turned on.
If you're already at 700RPM with no AC (maybe due to electrical load?) than it makes sense that you don't see an additional increase due to AC.
I see, I missed that. Thank-you!
