Engine Management and Tuning Crome, NepTune, Hondata, AEM, MOTEC

Why exhaust pop pop at 2xxx rpm?

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Old Aug 8, 2010 | 03:02 AM
  #1  
majdi's Avatar
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From: New Castle 15300, Kelantan
Default Why exhaust pop pop at 2xxx rpm?

Hm since i chip my b18c there saound pop pop at 2xxx rpm,
first i thing there problem with plug, but when i check plug and Q1-Q3 on
the ECU there no problem burn injector driver. It is problem with Map?
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Old Aug 8, 2010 | 09:37 AM
  #2  
bigD's Avatar
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From: cc,tx, USA
Default Re: Why exhaust pop pop at 2xxx rpm?

Is it just a base map or is the car tuned? Do you have a wide band? If so is it running lean when it starts to pop? You need to give more information on your setup if you want help.
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Old Aug 8, 2010 | 10:47 AM
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majdi's Avatar
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From: New Castle 15300, Kelantan
Default Re: Why exhaust pop pop at 2xxx rpm?

I buying new chip and install it to my ecu, no tuning.. Im not using
wide band, just monitor the map with crome + freelog.

The chip great, but the pop-pop come range 1900-2300 with 4th gear and
5th gear.. On 1,2 and 3 gear there no pop pop..it is map or another problem?
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Old Aug 8, 2010 | 11:47 AM
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From: amarillo tx
Default Re: Why exhaust pop pop at 2xxx rpm?

exhaust leak
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Old Aug 8, 2010 | 12:06 PM
  #5  
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From: New Castle 15300, Kelantan
Default Re: Why exhaust pop pop at 2xxx rpm?

Ok i will check tomorrow my exhaust, maybe it leak since car to lower and the exhaust always hit bump on the road.. i will post the result after check
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Old Aug 9, 2010 | 03:57 AM
  #6  
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From: New Castle 15300, Kelantan
Default Re: Why exhaust pop pop at 2xxx rpm?

Hi, after checking for exhaust, there no leak area for the exhaust..
Hm..i'm blur now... i read some thread about adjust for antilag.. make
pop pop at ref limit. It is same theory if i adjust map with this step:

http://www.sohchonda.com/forums/inde...howtopic=11983
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