Idle Increase when coming to a standstill

**dainese** · 04-10-2009, 10:03 AM

My car will most of the time increase about 50rpm or so, after i have come to a standstill. I can hear and feel the increase. The fuel consumption metre jumps from the usual 0.9L/100Km to 2.0L/100Km. It increases for a period of about 7-8 seconds and then goes back down to normal.

I think this happened after I cleaned the air filter which was a carbonio with a cone pod filter. Incidently, the filter wasn't changed for 2 years or so.

Any help would be appreciated.

Thanks a lot.

Justin

**McDub** · 04-10-2009, 10:13 AM

idle problems can sometimes be the MAF, so hopefully you didn't play around with it like i did...

**dainese** · 04-10-2009, 10:16 AM

hehe

Yeah, i read your thread thouroughly!

**Manaz** · 04-10-2009, 10:18 AM

Try turning your A/C off and see if it still happens...

**dainese** · 04-10-2009, 10:21 AM

it was off.

i don't use it much anyway.

**mikinoz** · 04-10-2009, 10:30 AM

At night with the lights on or all the time?

**Golf Loon** · 04-10-2009, 11:27 AM

Also try turning the steering lock to lock.
The p/s pump has a switch on it that can adjust the idle.

**dainese** · 04-10-2009, 11:35 AM

Originally Posted by mikinoz

At night with the lights on or all the time?

all the time!

soemthing to do with electronics, the Air fuel ratio must change when car is idling, and some reason it isn't doing it properly.

Originally Posted by Golf Loon

Also try turning the steering lock to lock.
The p/s pump has a switch on it that can adjust the idle.

i don't understand how that will be related.
the P/S does have a pressure relief valve... but I am not steering at any angle when this problem occurs.

**Preen59** · 04-10-2009, 11:52 AM

The PS pump puts load on the engine, so it has to increase the throttle position to take the extra load and stop the engine from stalling when you turn the wheel if the engine is at idle. If you have a dodgey or sticky switch, it could be staying engaged, hence the increase in RPM..