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View Full Version : KA bog when i use AC or elec fans?


z3us
04-21-2012, 05:17 PM
Any ideas on why my ka24de wants to idle around 900 and when i turn on my AC and/or Electric fans(altima) bogs and stumbles to around 400-500 range? Seems that any electrical load does this?

Agamemnon
04-21-2012, 05:46 PM
Check your AICV

z3us
04-21-2012, 07:15 PM
Yup, replaced it today and both had same result. All vac lines are new also

Agamemnon
04-21-2012, 09:19 PM
Hows your alternator? Is it charging correctly?

fliprayzin240sx
04-22-2012, 07:24 AM
Yup, replaced it today and both had same result. All vac lines are new also

Check the wiring to it...the IAC should open up and bump the idle a bit when you turn your AC on.

z3us
04-23-2012, 06:11 AM
Well I think the problem showed itself today. On the way to work today my alternator gave out on me.

Walperstyle
04-24-2012, 11:40 AM
yeah generally when you have the AC on, it bumps the idle up a little.

Croustibat
04-25-2012, 03:11 AM
These engines bump idle when there is more load on neutral gear. If a new alternator does not solve it, check your neutral sensor (in gearbox, but you can also check it from the ECU pinout or any fault code reader)

airman
04-27-2012, 02:27 PM
I don't believe the IACV is modulated when the AC is turned on. We have a separate valve for that - the auxiliary air valve opens and closes when the AC is turned on and off.

hOngsterr
04-27-2012, 07:08 PM
with my ac, my rpm goes lower, i thought that was normal lol

fliprayzin240sx
04-27-2012, 08:40 PM
with my ac, my rpm goes lower, i thought that was normal lol

It is, if the engine isnt bumping the idle.