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GSR JDM intermittent power trouble

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Old Aug 3, 2006 | 03:13 PM
  #1  
mathieucivic's Avatar
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From: Montreal, qc, canada
Default GSR JDM intermittent power trouble

2 years ago i swap a 97 GSR JDM in my RS.

2 monts ago my engine start to loose power in 4000+ rpm. (a VX can pass you)

The ECU and ENGINE are JDM OBD2a.

i check the wiring,make a complete tune up, change the dizzy.

everiting seems to be ok.

Someone else here ever ave the same trouble.

it's intermittent and if i stop the motor and start again the problem is gone for few minute.

tanks!
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Old Aug 3, 2006 | 11:27 PM
  #2  
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Default Re: GSR JDM intermittent power trouble (mathieucivic)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mathieucivic &raquo;</TD></TR><TR><TD CLASS="quote">2 years ago i swap a 97 GSR JDM in my RS.

2 monts ago my engine start to loose power in 4000+ rpm. (a VX can pass you)

The ECU and ENGINE are JDM OBD2a.

i check the wiring,make a complete tune up, change the dizzy.

everiting seems to be ok.

Someone else here ever ave the same trouble.

it's intermittent and if i stop the motor and start again the problem is gone for few minute.

tanks!</TD></TR></TABLE>

Try disabling the vac line to the secondary runner assembly.
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Old Aug 5, 2006 | 08:25 AM
  #3  
mathieucivic's Avatar
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Default Re: GSR JDM intermittent power trouble (mtber)

I try this.

tanks
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Old Aug 5, 2006 | 08:37 AM
  #4  
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Default Re: GSR JDM intermittent power trouble (mathieucivic)

This sounds like it could be related to your VTEC system. Has the computer shown any CELs?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtber &raquo;</TD></TR><TR><TD CLASS="quote">

Try disabling the vac line to the secondary runner assembly. </TD></TR></TABLE>

The normal position for the intake manifold is the short runners. Vacuum is applied to close them for low RPM operation. It could get stuck on the long runners (butterflies closed) if the IAB solenoid if sticking ot the vacuum purge is clogged.
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Old Aug 5, 2006 | 08:46 AM
  #5  
mathieucivic's Avatar
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From: Montreal, qc, canada
Default Re: GSR JDM intermittent power trouble (Dogginator)

No CEL.

Is intermittent and when i close the ignition and restart is ok for some time.

it is possible the ecu tink is kock and retard the timing too much.

The complete tune up is new, fuel filter all sensor check...

i even try a new distributor and the same thing happen.
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Old Aug 5, 2006 | 08:56 AM
  #6  
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Default Re: GSR JDM intermittent power trouble (mathieucivic)

The knock sensor would intervene at low RPM. Is you ECU stock?

Does the VTEC engage at 4400 RPM like it is supposed to when you have the power problem?
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Old Aug 7, 2006 | 03:03 PM
  #7  
mathieucivic's Avatar
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Default Re: GSR JDM intermittent power trouble (Dogginator)

OBD2A 100% stock.

the vtec kick in but no big difference in power.
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