Thread: Rough Idle with Air Conditioner on TD5

Just tested mine. Its a defender, but I can detect a very slight... wobble.. when the ac kicks in. I would imagine the extra load will make the ecu increase fuel to keep the same idle speed. I would suggest this is normal.

Originally Posted by BilboBoggles

Just tested mine. Its a defender, but I can detect a very slight... wobble.. when the ac kicks in. I would imagine the extra load will make the ecu increase fuel to keep the same idle speed. I would suggest this is normal.

Thanks for that info.

I noticed on the Nanocom that idle AC off is about 770 rpm and AC on idle is about 780 rpm.