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Erratic idling

Posted: Tue Sep 27, 2011 10:08 pm
by esi06
Help Help.....

Been driving esi for many years. This is the first time I encountered erratic idling for my ride. This morning, the moment the engine is started, the engine has erratic idling between 1.5 - 2.2k rpm.


What is wrong now?

Posted: Tue Oct 04, 2011 11:35 pm
by brokencar
Does the erratic idling persist, or is it a one-time event?

Posted: Thu Oct 13, 2011 10:41 pm
by esi06
brokencar wrote:Does the erratic idling persist, or is it a one-time event?
Happened when the engine is cold.
For one instance, I started the car and rest it rest from 10 mins. The erratic idling eventually reduces and the idling is normal after 10 mins. Have been monitoring it, same event happen.

Posted: Tue Nov 01, 2011 3:57 pm
by kynoe_tan
try cleaning your throttle body

Posted: Mon Dec 12, 2011 4:12 am
by aria
It could be:
EACV/IACV, try to clean it.
Low coolant.
Vacum leak.

Posted: Mon Dec 19, 2011 12:34 pm
by esi06
aria wrote:It could be:
EACV/IACV, try to clean it.
Low coolant.
Vacum leak.

Cleaned the EACV/ IACV.
Same problem.

Finally replaced them and the problem is fixed.

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Posted: Sat Jan 14, 2012 4:21 pm
by ayrwind
Normal lah. Early in the morning (6.30am) when I start my CL7R, the car idles at about 1.8k rpm, and will slowly decrease. If I drive off, the idling RPM will just drop down to 800. For the rest of the day, the car seldom go back to the high 1.8k levels. I think it is just some feature that increases the idling rpm when the engine is very cold.