DC5R idling problem

Hey guys

i havent drive my DC5R for more then a month and store in the garage

the battery gone flat and i need a booster to start it

the car starts but just wont idle...rev keep jumoing between 1K-2K mark

after a 30 minutes drive the car still like that and then i start to think what happen..and the battery wont charge up too

then the next day , the car wont start and i jump start it again and its still the same, and then i think maybe the battery is dead,..so i test it and it is dead...

after the new battery put in, the car acts the same , keep reving 1-2K for another 20 minutes, then i decide to go for a drive, ..then now seems the problem is fix

anyone experience this problem before? or there is a problem with my car? as even my civic and DC4 battery run flat it wont happen like this

anyone can tell me whats wrong with my DC5?

thanks

The jumpiness in your idle is your ECU relearning how to idle. Its completely normal.

i never experienced burnt clutch. but people told me that your rpm will random go up.... anyone know if that's the case?

i thought so
but i was thinking why its related to the battery
coz when i still have the old battery, it just wont idle at all
and this not happen in my other EK DC2

Quote:

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Originally Posted by mugsee

The jumpiness in your idle is your ECU relearning how to idle. Its completely normal.

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Are you sure? My euro (K24A) didnt do that when the ECU was reset.


Perhaps there was a buildup or dryup of oil/contaminants in the thottle body or fuel injectors which have now burnt away.

ps. you should disconnect the battery if you store the car for a long time. Once a battery goes completely flat, it'll never be the same again.

vacuum line may be loose

EDIT

something to do with your vacuum

hm..this really worry me as i cant anything wrong from the wires or hose , and my enigne bay is pretty much stock, just a panel filter thats all

but even if its hunting an idle point, should take that long right..20 minutes...if i didnt drive it, it will take even longer

IAC valve I think it is! It just gets stuck, and then jumps up and down around the 1-2000 RPM mark. Sounds like you have awsome cams! You can have it cleaned, or replaced at Honda... or if you know what your doing, clean it yourself.

Eurodude: seems to only happen (to me) when you drain the battery completely and not just reset the ecu/disconnecting the battery and reconnecting it. Or, it could be the K24 ECU is different to the K20 ECU.

I'm not too sure why it didn't learn your idle first time around but it seems to be acting normally after you changed your battery. Check the helms manual for more information on letting the car relearn how to idle after resetting the ECU.

Did you check to see if it was the IAC Valve? Or at least call Honda and ask them?

Stock ECU's will not take that long to "learn".

i had this problem on my base dc5 and it was the IAC valve. the engine warning light also came on, did you get that too?

Could it be petrol related too? Sitting there for such a long time fuel may drop a few RON?