Daewoo Lanos high Idle speed

paul.wo...@gmail.com

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Nov 22, 2005, 8:43:58 AM11/22/05

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Hi,

My Daewoo Lanos is having a problem with its idle speed being too high.
At a standstill it idles at about 1600rpm, and can be a bit embarassing
at the traffic lights. I have removed the idle control valve, given it
a good clean, and it seems to be moving in and out ok when I switch on
the ignition. I have also removed and checked all the various small
bore pipes that go between the inlet manifold and a pair of plastic
boxes attached to the bulkhead (gawd knows what they do !) but no luck,
it still idles like I have the foot to the floor...

Any ideas anyone, I cannot afford to take it to a garage at the moment,

Paul...

Tim..

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Nov 22, 2005, 9:07:33 AM11/22/05

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<paul.wo...@gmail.com> wrote in message
news:1132667038.5...@z14g2000cwz.googlegroups.com...

Is it warming up properly?

AFAIK, these have a separate wax stat which lifts idle speed independantly
to the ISCV when the engine is cold.

Tim..

John

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Nov 22, 2005, 9:14:03 AM11/22/05

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<paul.wo...@gmail.com> wrote in message
news:1132667038.5...@z14g2000cwz.googlegroups.com...

There is a known fault on some Lanos that cause high idle and need an
ECU software update. If you don't fancy paying Daewoo there is a
temporary fix by:

Ignition On
Disconnect Idle Speed Control Valve
Ignition Off
Re-connect Idle Speed Control valve
Repeat 4 or 5 times
Start Vehicle - It shouldn't idle unassisted so use the throttle.
Keep vehicle idling on throttle to initialise self learn process
It should now idle within parameters.

paul.wo...@gmail.com

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Nov 22, 2005, 9:36:42 AM11/22/05

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Hi,

Thanks for the speedy responses. The engine warms up fine, but even
when cold the idle seems faster than I would expect. Any idea where the
wax stat would be ?

I will try the temp fix, and let you know if sucessful or not...
fingers crossed,

Paul...

Tim (remove obvious)

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Nov 22, 2005, 1:27:10 PM11/22/05

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<paul.wo...@gmail.com> wrote in message
news:1132670202.2...@z14g2000cwz.googlegroups.com...

Yes, on the inlet manifold. It acts directly on a supplimental air passage
on the manifold. (rather than mechanically on the throttle linkage)

Tim..

Wordy

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Nov 23, 2005, 2:55:34 AM11/23/05

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Fantastic, the unplug ICV + ignition on/off trick worked !! Thanks ever
so much for your help, now happily idling at about 800rpm.. I no longer
sound like a boy racer ;-)

Paul...

John

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Nov 23, 2005, 5:56:09 AM11/23/05

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"Wordy" <wor...@hotmail.com> wrote in message
news:1132732534.7...@f14g2000cwb.googlegroups.com...

Yes that seems to do the trick on these motors. Just repeat if the
problem re-occurs. Another annoying problem I found on the Lanos is that
when the car is rolling forward the speed sensor increases the revs to
about 1300rpm but sometimes (especially if in heavy stop-go traffic)
when the vehicle comes to a halt the revs don't always drop, but if you
edge forward a couple of feet and stop again they will drop to normal.

fonda

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Feb 10, 2018, 12:18:02 PM2/10/18

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replying to paul.wordingham, fonda wrote:
tps sensor or control valve, when changed must remove one battery lead for 2
minutes for cpu to reset

--
for full context, visit https://www.motorsforum.com/maintenance-uk/punto-annoyance-47689-.htm

LJ

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Mar 7, 2021, 9:45:06 PM3/7/21

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High John, now that Daewoo are no longer around as a company do you know how i could go about getting this same service? My 03 Kalos is having the same symptoms as discussed.

--
For full context, visit https://www.motorsforum.com/maintenance-uk/daewoo-lanos-high-idle-speed-69461-.htm

marjan1200

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Oct 16, 2023, 9:15:06 AM10/16/23

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I hawe also problem with worming up engine. I decide to change termostat and I hope that failor will be removed and solved.