FloridaCivic

When My Car First Starts It Is Completly Fine But When It Warms Up The Idle Drops To 600rpm.....This Is Like After 10mins.....Any Idea's What Can Be Wrong?

I Have A B16aSir2 motor in my car.

You Think Cleaning Out The IACV Screen Will Fix That/Is That The Problem?

B18CivicEH2

yea...try cleaning it...and your motor's idle after warm up suppost to drop...but usually to like 800rpm..

HCJDM1

i dont think its the IACV ... check your timing ... does your car stall ?

cleaning it cant hurt though

FloridaCivic

nope it doesnt stall at all ever, its not the timing cause otherwise i would have other problems, just the idle drops when the car is warm. i did just replace a raditator can that also have anything to do with it?

B18CivicEH2

well...first off, what does it idle at when its warming up???it suppost to idle a bit high so the coolant can get hot...once its warm, the idle will drop...so lets say when you car is warming up it idles at 1kRPM, thenthat would be too low and will have to raise it up usng the idle screw...so if you raise it using the screw, then once its warm it should idle higher too...maybe at the normal 800rpm...when i cleaned out my IACV it fixed my idle problem...

FloridaCivic

when it starts up its a like 1000-1200rpm and then drops down to 600rpm

Boostedb20EH2

I believe someone needs to write a full article on all problems that can be wrong with idle rpm because their are far too many posts like this.

FloridaCivic

That Would Be Helpful, Make It A Sticky Cause When I Was Searching For It There Were To Many

Boostedb20EH2

Yes I dont have anywhere near the mechanical knowledge though

B18CivicEH2

you see...when it warms up..i believe it suppost to be at like at 1500RPM on cold start and as it warms up it should be like at 800....just adjust the idle screw a bit higher .. people say its bad to mess with the screw but i never had problems with it or heard anyone having problems from it..

B18CivicEH2

if your read https://honda-tech.com/zerothread?id=1658740 , everyone's idle at cold start is abour 1400-1700

FloridaCivic

Ok so today I took off my IACV and it was black, now its silver again (The Screen). While I was at it I also changed out my spark plugs to new ones, Thank God I did because the old ones were black, I haven't changed them in over a yr, close to 2.

FloridaCivic

Ok i did all that and the car runs better but still after like 15min of driving it drops to 7-800rpm is that normal? Also if i stop, and turn car off, go inside a store, come back out and then turn car on and put it into drive/rev it wants to stall/die but it dont

B18CivicEH2

800rpm idle is normal if its when the car is warm...

FloridaCivic

what about if i stop, and turn car off, go inside a store, come back out and then turn car on and put it into drive/rev it wants to stall/die but it dont .....

vlc92189

your fine, did you just get a honda? Because when i first got my honda i wondered the same as you were.. noticig for the first month being the summer and all the idle wasnt htat big.. then when it started to get colder i noticed the idle thing, but then realized its normal... my car on really cold days hits about 1700 rpm at start up but then drops to 700-800

FloridaCivic

no ive had my honda for 3yrs now, the b16 is 2yrs old now, but just started to notice this, its also automattic but still enough with the laughin cause yea knee surgery and cant keep clutching...but long story short ive just started to notice this idle problem

FloridaCivic

Three Times The T

FloridaCivic

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