Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

rpm stays up when pulling to a stop and then drops when car stops.

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Old Aug 27, 2007 | 02:28 PM
  #1  
RACEPAK's Avatar
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Default rpm stays up when pulling to a stop and then drops when car stops.

hello everyone.

when i'm pulling to a stop and leave the gas the rpm drops to 1000 rpm insted of 750 until the car is fulley stopped, and then after a second or two it drops back to 750.

what could it be?
iacv?
iacv dutycycle?

using p28 with crome.

thanks

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Old Aug 27, 2007 | 04:07 PM
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I can say that my car does the same. I just was never worried about it. I also have a chipped P28 with crome.
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Old Aug 27, 2007 | 04:23 PM
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Default Re: rpm stays up when pulling to a stop and then drops when car stops. (RACEPAK)

flywheel might be getting stuck?... or tps sensor messed up.
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Old Aug 27, 2007 | 04:30 PM
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My flywheel and TPS are new... Not trying to thread jack, just helping out with the problem
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Old Aug 27, 2007 | 04:31 PM
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Default Re: rpm stays up when pulling to a stop and then drops when car stops. (RACEPAK)

my car does the exact same thing. not the exact same rpms but really close and I dont think it has anything to do with a flywheel cause I just replaced mine and it has always done that
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Old Aug 27, 2007 | 04:34 PM
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Default Re: rpm stays up when pulling to a stop and then drops when car stops. (gsrhatch2356)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsrhatch2356 &raquo;</TD></TR><TR><TD CLASS="quote">my car does the exact same thing. not the exact same rpms but really close and I dont think it has anything to do with a flywheel cause I just replaced mine and it has always done that</TD></TR></TABLE>

Do you have a chipped P28? Or a chipped ECU with crome? I was thinking it was something to do with the programming and the VSS.
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Old Aug 27, 2007 | 05:20 PM
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Sounds to me like your throttle is sticking open a bit. It happened to the worn-out motor I had in my civic with 220k miles on it. (no matter how much cleaner and lube i used on it, it still stuck like that)
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Old Aug 27, 2007 | 05:27 PM
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Default Re: rpm stays up when pulling to a stop and then drops when car stops. (roadracer321)

I have a chipped p72, yea it probally has something to do with the upgraded air\fuel map
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Old Aug 27, 2007 | 05:37 PM
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The idle is always higher when you're rolling, and drops once you stop. Stock cars do the same thing...It is in case you have to slam on your brakes, you don't stall the motor and loose vacuum. (not to mention there is just "more" vacuum)


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Old Aug 27, 2007 | 05:43 PM
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Default Re: (drtysohc)

did you change your belts???

probably your timing is off????
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Old Aug 27, 2007 | 05:52 PM
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Default Re: (LwdJdmR)

I guess just disregard my comment, since we have all of these other brilliant solutions.


lawl
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