Engines Revs Up and Down when first turned on?
06-21-2004, 06:10 PM
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Engines Revs Up and Down when first turned on?
Hi guys I keep searching but the only info i've found on engine rev'in is how to increase the rpm's and swap the engine lol. When i first turn my car on the engine revs up and down for like 2 to 4 mins. It really pisses me off and i can't figure out what it is? Have any of you had this problem before .... if so how was it resolved?
oh and secondly i just installed a pair of denji projectors for my 93 coup, i just wanted to know how far away i should be from the wall when i align the height of the beams? when i sit in the seat the top of the beam should be eye level against the wall right?
thx guys
oh and secondly i just installed a pair of denji projectors for my 93 coup, i just wanted to know how far away i should be from the wall when i align the height of the beams? when i sit in the seat the top of the beam should be eye level against the wall right?
thx guys
06-21-2004, 06:19 PM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
i am not too familiar with lights and bulbs etc... but my projectors came with h3 bulbs and a wiring harness. the harness is in; will it support H4 bulbs? cause my projector lamp is a GEN I and doesn't have the blue lens, so i wanna buy some h4 buls with a blue tint...
06-21-2004, 06:35 PM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
i think that is normal. every car i've driven in does that when they're first started up after sitting for a long time.
06-21-2004, 06:39 PM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
if in fact ur car idle is whackd out
i think ur problem lies in the use of the keyword in ur search
instead of rev....try "idle (crazy)"
came up wit 36 archived threads
i think ur problem lies in the use of the keyword in ur search
instead of rev....try "idle (crazy)"
came up wit 36 archived threads
06-21-2004, 06:41 PM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Full Intensity »</TD></TR><TR><TD CLASS="quote">When i first turn my car on the engine revs up and down for like 2 to 4 mins. It really pisses me off and i can't figure out what it is? Have any of you had this problem before .... if so how was it resolved?</TD></TR></TABLE>
when you said it revs up and down...is it doing it every other seconds or...? might be idle problem.
when you said it revs up and down...is it doing it every other seconds or...? might be idle problem.
06-21-2004, 06:56 PM
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Re: Engines Revs Up and Down when first turned on? (handa)
eh.. mine does that, but only maybe for about 10 seconds. Your saying its minutes correct? Are you throwing any CEL's? Usually when the weather changes is when i have my problems with my MAP sensor and causes crazy idle. Just pull off the MAP sensor.. then wiggle it back in. That usually makes my problems go away for a while. If it is not that, then maybe IACV? Just throwing up some options. Good luck. 
06-21-2004, 07:43 PM
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Re: Engines Revs Up and Down when first turned on? (AzntaggeR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AzntaggeR »</TD></TR><TR><TD CLASS="quote">i think that is normal. every car i've driven in does that when they're first started up after sitting for a long time.</TD></TR></TABLE>
My car does that for a couple of weeks when it first starts getting cold out. Then it goes away.
It's weird. It's like it's an adaptation period.
My car does that for a couple of weeks when it first starts getting cold out. Then it goes away.
It's weird. It's like it's an adaptation period.
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06-21-2004, 08:06 PM
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Re: (Jimmy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jimmy »</TD></TR><TR><TD CLASS="quote">Could be your IACV</TD></TR></TABLE>
clean it off good and that should take care of it i had the same problem and cleaned it out with rubbing alcohol. And for the lights, look up the HID DIY thread i bet there is some good info in there about aligning your lights
clean it off good and that should take care of it i had the same problem and cleaned it out with rubbing alcohol. And for the lights, look up the HID DIY thread i bet there is some good info in there about aligning your lights
06-21-2004, 08:15 PM
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Re: (solsi2000)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by solsi2000 »</TD></TR><TR><TD CLASS="quote">yea its probably normal......</TD></TR></TABLE>
No your engine revving up and down isn't normal.
No your engine revving up and down isn't normal.
06-21-2004, 08:28 PM
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Re: (Jimmy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jimmy »</TD></TR><TR><TD CLASS="quote">Could be your IACV</TD></TR></TABLE>
Its that or the FICV. I had the same problem and I changed both.
Its that or the FICV. I had the same problem and I changed both.
06-21-2004, 08:38 PM
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Re: (Jimmy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jimmy »</TD></TR><TR><TD CLASS="quote">
No your engine revving up and down isn't normal.
</TD></TR></TABLE>
^^^^ thats True ^^^^
My friend had his car do that, what you need to do is adjust the little screw clock wise by the intake manifold and it give the car more gas wile its idaling, the reasone its going up and down is because the car doen't have enuff gas and it pumps more in at a certin rev point so your car will not die on you.
No your engine revving up and down isn't normal.
</TD></TR></TABLE>^^^^ thats True ^^^^
My friend had his car do that, what you need to do is adjust the little screw clock wise by the intake manifold and it give the car more gas wile its idaling, the reasone its going up and down is because the car doen't have enuff gas and it pumps more in at a certin rev point so your car will not die on you.
06-21-2004, 09:20 PM
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Re: (StreetHonda95)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StreetHonda95 »</TD></TR><TR><TD CLASS="quote">
^^^^ thats True ^^^^
My friend had his car do that, what you need to do is adjust the little screw clock wise by the intake manifold and it give the car more gas wile its idaling, the reasone its going up and down is because the car doen't have enuff gas and it pumps more in at a certin rev point so your car will not die on you.</TD></TR></TABLE>
The screw you are talking about is the idle adjusting screw and it doesnt control the amount of gas going to the engine, it controls the amount of air being taken in for idle. But it can cause it to idle like that if it is adjusted all the way out, so I guess you can check that too but if your idle is fine when it is warm then its probably not the problem.
^^^^ thats True ^^^^
My friend had his car do that, what you need to do is adjust the little screw clock wise by the intake manifold and it give the car more gas wile its idaling, the reasone its going up and down is because the car doen't have enuff gas and it pumps more in at a certin rev point so your car will not die on you.</TD></TR></TABLE>
The screw you are talking about is the idle adjusting screw and it doesnt control the amount of gas going to the engine, it controls the amount of air being taken in for idle. But it can cause it to idle like that if it is adjusted all the way out, so I guess you can check that too but if your idle is fine when it is warm then its probably not the problem.
06-21-2004, 09:37 PM
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sorry to high jack this thread, but why would my car idle high, like 1200 all the time, then sometimes, it will just drop to 700 and the fuel cut off is at 3500? Safe mode?
06-21-2004, 10:48 PM
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Re: (EG6 SiR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EG6 SiR »</TD></TR><TR><TD CLASS="quote">
The screw you are talking about is the idle adjusting screw and it doesnt control the amount of gas going to the engine, it controls the amount of air being taken in for idle. But it can cause it to idle like that if it is adjusted all the way out, so I guess you can check that too but if your idle is fine when it is warm then its probably not the problem. </TD></TR></TABLE>
Opps my bad, ur right thats what it was, but remember it was my friends car so i dont realy remember what it was controlling, glad you got that straight. Nice lookin out bro!
The screw you are talking about is the idle adjusting screw and it doesnt control the amount of gas going to the engine, it controls the amount of air being taken in for idle. But it can cause it to idle like that if it is adjusted all the way out, so I guess you can check that too but if your idle is fine when it is warm then its probably not the problem.
</TD></TR></TABLE>Opps my bad, ur right thats what it was, but remember it was my friends car so i dont realy remember what it was controlling, glad you got that straight. Nice lookin out bro!
06-22-2004, 07:56 AM
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Re: (Full Intensity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Full Intensity »</TD></TR><TR><TD CLASS="quote">thx guys i'll check out the iacv!</TD></TR></TABLE>
that was the problem with mine when I had your symptoms, cept mine idled up and down all the time
that was the problem with mine when I had your symptoms, cept mine idled up and down all the time
06-22-2004, 08:54 AM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
06-22-2004, 09:22 AM
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Re: Engines Revs Up and Down when first turned on? (Full Intensity)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Full Intensity »</TD></TR><TR><TD CLASS="quote">oh and secondly i just installed a pair of denji projectors for my 93 coup, i just wanted to know how far away i should be from the wall when i align the height of the beams? when i sit in the seat the top of the beam should be eye level against the wall right?
thx guys</TD></TR></TABLE>
Pull straight up to a vertically level wall. Make an X with tape of your choice directly in front of the headlight bulb. Go straight back 20 feet. Align the headlights so the brightest part of the beam is 1/4" down and right of the center of the X. Use an 8mm socket to adjust the headlights. It's easier than the adjusting screw.
thx guys</TD></TR></TABLE>
Pull straight up to a vertically level wall. Make an X with tape of your choice directly in front of the headlight bulb. Go straight back 20 feet. Align the headlights so the brightest part of the beam is 1/4" down and right of the center of the X. Use an 8mm socket to adjust the headlights. It's easier than the adjusting screw.
06-22-2004, 09:35 AM
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Re: Engines Revs Up and Down when first turned on? (JRI94)
I had the same problem and it was the tps . After it was "calibrated" the problem went away. But my neighbor did to and it was his IACV, so it could be any of the two.
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