different idles during the day and night
10-22-2004, 06:42 AM
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different idles during the day and night
hi.. i have been having idling problems also.. i have been reading on the treads about it and someone told me to clean out my IACV so i did.. it did me no help.. i have noticed that during the day after i warm up the car it will idle real low at no particular time.. like i'll be cruising come to a light and the idle ok then when i come to the next light the idle will be low at like 200rpm.. i have also noticed the last 2 nights i have driven it the idle has been real steady at around 700rpm.. i am rolling a stock d16z6 with a no name cai.. today i'm going to replace my air filter and plug wires.. please help..
10-22-2004, 07:09 AM
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Re: different idles during the day and night (vtecenjun)
fuel filter maybe?
Also, try unplugging your IACV, and seeing what the idle is. If it's way low then your idle screw is set wrong.
Also, try unplugging your IACV, and seeing what the idle is. If it's way low then your idle screw is set wrong.
10-22-2004, 07:28 AM
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ok here is what else i have noticed... my car will sometimes idle at 500 at stop and then all of a sudden start to drop.. i dont know.. and my mechanic took it out and said something might be blocked but he didnt check cuz he was busy.. so i dont know what to do
10-22-2004, 06:32 PM
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aight i unplugged my iavc and the idle went down but i have messed with the idle screw and thats why at night my car idles at around 700.. what else could it be..
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10-22-2004, 08:24 PM
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Re: (vtecenjun)
hey man i don't have any solutions, but i'm in the same boat as you. Mines idles perfect at 680 at night but during the day it dips down to 500 rpm and back up at the traffic lights
10-22-2004, 08:31 PM
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yeah mine idles at 700 at night.. and during the day it will idle at 700 or 500 then drop to 200 quick.. so i dont know what else to do right now.. still gonna change my plug wires and filter..
10-23-2004, 09:21 AM
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Re: (HELLA!!! bonta-kun)
same boat here to, d16z6 idles at 700 nightime , during the day when its warm idles at 500 +/- 50rpms, been driving me crazy for two years. Ive done almost anything you can imagine to cure it. 
10-23-2004, 11:36 AM
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Re: (Castor)
i also have this same problem and have done a bunch of crap to fix it i tried sea foam and now i get a code for my oxygen sensor. ive decided to stop wasting money to fix this stupid motor and save my money for a swap.
10-24-2004, 06:59 PM
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Re: (vtecenjun)
NightTime=cooler=Choke on full when you start engine=higher revs
Daytime=hotter=not as much choke=lower revs
When i start mine at night it will hang around 1600 untill it warms up. In the daytime when the suns been beating on it it will start right up and idle at 400-700
Daytime=hotter=not as much choke=lower revs
When i start mine at night it will hang around 1600 untill it warms up. In the daytime when the suns been beating on it it will start right up and idle at 400-700
10-24-2004, 07:49 PM
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Re: different idles during the day and night (vtecenjun)
i have the same prob on my d16y8. i have a jet v-force and i've noticed that if any of the wires are a little looses it will do just like your car is saying. i know you don't have a chip or anyhting but check for any loose wiring on your map sensor adn IACV. hope you figure it out dude
10-26-2004, 03:02 AM
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Re: different idles during the day and night (HCivExoo)
i'm running the afc hack. Sea foam does work for a little while but since i'm running quite a bit rich since i haven't dynoed, im wondering if it has something to do with the o2 sensor. I also thought about the air temp, being that I am in hawaii. But it could be so many factors. I've checked for vac leaks, sea foam, timing (idk why i'm desperate), cleaned iacv, adjust iacv screw, etc. I think it's just a problem to live with just as long it doesn't throw any cels or the car doesn't die out.
Although when the idle dips that low during the day and turn on my a/c, my car actually died for the 1st time at the traffic light.
if someone could figure this one out and it being the solution to everyone's problem, i think he would get a lot of
and maybe even a donation from some of us civic owners 
Although when the idle dips that low during the day and turn on my a/c, my car actually died for the 1st time at the traffic light.
if someone could figure this one out and it being the solution to everyone's problem, i think he would get a lot of
and maybe even a donation from some of us civic owners
10-26-2004, 07:06 AM
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ok heres what i thought it was the air intake temp sensor.. i'm not sure why but thats what i thought.. has anyone tried replacing that?? i was going to do that but its 50bucks 
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