initial idle odd.

20civic07 · 12-02-2007, 08:15 PM

well i have an intake system on my car, and it is just a little weird when i start the car when the engine is cold. I'll start it up, and it'll sit and idle at around 1900ish rpms for a few moments, and then it'll jump down to 1500 and idle there... is this normal or something i should be worried about?

***solidust*** · 12-02-2007, 08:16 PM

how long do you wait

20civic07 · 12-02-2007, 08:24 PM

it gives it a good 45 sec i think.. and when i mean idle there, the car isnt warmed up yet, but it idles normally when warmed up.

***Whocares05050*** · 12-02-2007, 08:27 PM

Of course its normal, lol. You never noticed it when it was stock? The engine runs in open loop / little rich at startup and runs a little high in the rpm range. The Oil pressure is slightly higher as well. The purpose of this is for the cat system. The car needs the cat at full operating temps for it to work correctly, and it needs to heat it up quickly. Perfectly normal.

CapnCrunch926 · 12-02-2007, 08:28 PM

Any car does this. Some cars do it to a greater extent, but on a cold start you'll always see a higher idle for a bit.

nayilsi · 12-02-2007, 08:32 PM

nOOb ur fine

20civic07 · 12-02-2007, 08:41 PM

i didn't quite notice when stock. i know it does it, but it felt like it SUDDENLY drops down to 1500 rpms. like it'll idle high then SUDDENLY go to 1500 rpm. was just a question... i am paranoid everytime something sounds like it goes wrong with a car..

dorkiedoode · 12-02-2007, 08:46 PM

what till you hear your gear grind.

20civic07 · 12-02-2007, 08:50 PM

already do... problems with civic = too many

***Whocares05050*** · 12-02-2007, 09:05 PM

Stop looking for problems and enjoy your purchase for what it is.

AllShowNoGo · 12-02-2007, 09:12 PM

Quote:

Originally Posted by Whocares05050

Stop looking for problems and enjoy your purchase for what it is.

Gregwire · 12-03-2007, 02:03 AM

My old car (89 sunbird turbo) used to idle at almost 3K when I first started it cold. It would take a good 3-5 min for it to come down as well.

andreewlee · 12-03-2007, 07:19 PM

i posted up a thread that addressed the same issue
it's because the engine's a high compression engine and all that warming up junk
nothing to worry about
just don't push it till it's warmed up all the way and you're fine

dnbsi · 12-03-2007, 07:31 PM

mine is stock and once it a while it will do that fast drop to 1500. 2000 for about 45 secs and then a quick drop to 1500. this only usually happens after the first initial cold start, then it sits all day (at work for instance) and then i start it to go home it might do that.

***solidust*** · 12-03-2007, 07:43 PM

I usually wait like 10 min until the car is under 1k

rmfa · 12-03-2007, 07:44 PM

Another idle thread? Please stop. Your car is just working as designed. Is there something in the manual about this? Quit complaining and drive it or sell it.

DTNguyen107 · 12-03-2007, 08:22 PM

It's normal......period...

***Whocares05050*** · 12-03-2007, 10:18 PM

Quote:

Originally Posted by Gregwire

My old car (89 sunbird turbo) used to idle at almost 3K when I first started it cold. It would take a good 3-5 min for it to come down as well.

Who the fucck would turbo a sunbird? lol

soxfan143 · 12-03-2007, 11:59 PM

Quote:

Originally Posted by Whocares05050

Who the fucck would turbo a sunbird? lol

lol. Thats funny

radiocontrolhead · 12-04-2007, 12:08 PM

Quote:

Originally Posted by 20civic07

well i have an intake system on my car, and it is just a little weird when i start the car when the engine is cold. I'll start it up, and it'll sit and idle at around 1900ish rpms for a few moments, and then it'll jump down to 1500 and idle there... is this normal or something i should be worried about?

You're odd and your car is normal.

12-02-2007, 08:15 PM	#1 (permalink)
20civic07 Senior Member Join Date: Mar 2007 Posts: 1,327 iTrader: 8 / 100%	initial idle odd. well i have an intake system on my car, and it is just a little weird when i start the car when the engine is cold. I'll start it up, and it'll sit and idle at around 1900ish rpms for a few moments, and then it'll jump down to 1500 and idle there... is this normal or something i should be worried about?

12-02-2007, 08:27 PM	#4 (permalink)
*Whocares05050* WHOcaREs05050 Join Date: Oct 2007 Location: SOFLA Age: 22 Posts: 11,818 Mike iTrader: 6 / 100%	Of course its normal, lol. You never noticed it when it was stock? The engine runs in open loop / little rich at startup and runs a little high in the rpm range. The Oil pressure is slightly higher as well. The purpose of this is for the cat system. The car needs the cat at full operating temps for it to work correctly, and it needs to heat it up quickly. Perfectly normal. __________________

12-02-2007, 08:41 PM	#7 (permalink)
20civic07 Senior Member Join Date: Mar 2007 Posts: 1,327 iTrader: 8 / 100%	i didn't quite notice when stock. i know it does it, but it felt like it SUDDENLY drops down to 1500 rpms. like it'll idle high then SUDDENLY go to 1500 rpm. was just a question... i am paranoid everytime something sounds like it goes wrong with a car.. Last edited by 20civic07; 12-02-2007 at 08:50 PM.

12-02-2007, 09:05 PM	#10 (permalink)
*Whocares05050* WHOcaREs05050 Join Date: Oct 2007 Location: SOFLA Age: 22 Posts: 11,818 Mike iTrader: 6 / 100%	Stop looking for problems and enjoy your purchase for what it is. __________________

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12-02-2007, 08:16 PM	#2 (permalink)
*solidust* Derka Derka! Join Date: Aug 2007 Location: Henderson, Nevada Age: 19 Posts: 1,331 BOB SAGET! iTrader: 10 / 100%	how long do you wait

12-02-2007, 08:24 PM	#3 (permalink)
20civic07 Senior Member Join Date: Mar 2007 Posts: 1,327 iTrader: 8 / 100%	it gives it a good 45 sec i think.. and when i mean idle there, the car isnt warmed up yet, but it idles normally when warmed up.

12-02-2007, 08:28 PM	#5 (permalink)
CapnCrunch926 Senior Member Join Date: Nov 2007 Location: Tallahassee, FL/North Palm Beach, FL Age: 19 Posts: 252 iTrader: 0 / 0%	Any car does this. Some cars do it to a greater extent, but on a cold start you'll always see a higher idle for a bit.

12-02-2007, 08:32 PM	#6 (permalink)
nayilsi Senior Member Join Date: Jul 2007 Location: I have to return some Video Tapes. Posts: 7,402 iTrader: 0 / 0%	nOOb ur fine

12-02-2007, 08:46 PM	#8 (permalink)
dorkiedoode Senior Member Join Date: May 2006 Posts: 1,103 iTrader: 2 / 100%	what till you hear your gear grind.

12-02-2007, 08:50 PM	#9 (permalink)
20civic07 Senior Member Join Date: Mar 2007 Posts: 1,327 iTrader: 8 / 100%	already do... problems with civic = too many

12-03-2007, 02:03 AM	#12 (permalink)
Gregwire Member Join Date: Sep 2007 Location: Regina Sask Age: 24 Posts: 59 Greg Godwin iTrader: 0 / 0%	My old car (89 sunbird turbo) used to idle at almost 3K when I first started it cold. It would take a good 3-5 min for it to come down as well.

12-03-2007, 07:19 PM	#13 (permalink)
andreewlee Junior Member Join Date: Oct 2007 Location: Cypress Age: 18 Posts: 14 Andrew iTrader: 0 / 0%	i posted up a thread that addressed the same issue it's because the engine's a high compression engine and all that warming up junk nothing to worry about just don't push it till it's warmed up all the way and you're fine

12-03-2007, 07:31 PM	#14 (permalink)
dnbsi Senior Member Join Date: Apr 2007 Posts: 956 iTrader: 0 / 0%	mine is stock and once it a while it will do that fast drop to 1500. 2000 for about 45 secs and then a quick drop to 1500. this only usually happens after the first initial cold start, then it sits all day (at work for instance) and then i start it to go home it might do that.

12-03-2007, 07:43 PM	#15 (permalink)
*solidust* Derka Derka! Join Date: Aug 2007 Location: Henderson, Nevada Age: 19 Posts: 1,331 BOB SAGET! iTrader: 10 / 100%	I usually wait like 10 min until the car is under 1k

12-03-2007, 07:44 PM	#16 (permalink)
rmfa Senior Member Join Date: Sep 2006 Location: Austin, TX Age: 27 Posts: 3,437 Ronnie iTrader: 2 / 100%	Another idle thread? Please stop. Your car is just working as designed. Is there something in the manual about this? Quit complaining and drive it or sell it.

12-03-2007, 08:22 PM	#17 (permalink)
DTNguyen107 Senior Member Join Date: Aug 2007 Location: Charlotte, NC Posts: 1,341 iTrader: 0 / 0%	It's normal......period...

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