Won't Rev Pass 5 Grand
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Re: Won't Rev Pass 5 Grand (ocdcivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ocdcivic »</TD></TR><TR><TD CLASS="quote"> Could not having that sensor cause my problem? Or do I need a different ECU? Any help would be great.</TD></TR></TABLE>
There are a couple differences between the USDM and JDM motors, having to do with the VTEC pressure switch, crankshaft fluctuation and possibly also another of the oil pressure sending units.
The USDM ECU checks for a minimum oil pressure at the VTEC solenoid before it allows the VTEC system to operate (which may be your primary problem, whereas the others will mostly just give you error codes).
There are a couple differences between the USDM and JDM motors, having to do with the VTEC pressure switch, crankshaft fluctuation and possibly also another of the oil pressure sending units.
The USDM ECU checks for a minimum oil pressure at the VTEC solenoid before it allows the VTEC system to operate (which may be your primary problem, whereas the others will mostly just give you error codes).
Joined: Aug 2003
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From: Warning, gRand Return imminent,, NY, USA
Hope you have papers or Banash will get you're motor eventually in Wastechester!
Talk to Rodney, he's on H-T that's his name. He is local. Maybe he can take a look at your caR.
Talk to Rodney, he's on H-T that's his name. He is local. Maybe he can take a look at your caR.
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Re: Won't Rev Pass 5 Grand (ocdcivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ocdcivic »</TD></TR><TR><TD CLASS="quote">So in theory should the P72 ECU work? </TD></TR></TABLE>
I don't think so.
Easiest might be to find a JDM ECU.
Rodney ...
https://honda-tech.com/zero...=5741
I don't think so.
Easiest might be to find a JDM ECU.
Rodney ...
https://honda-tech.com/zero...=5741
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From: westchester, NY
Re: (KayOs)
Ok so this is what I have come down to.....
At first I had a P73...023 ECU. I couldn't get that ECU to read with the NYS inspection computer. I figured a P72 would work. It is a brand new P72 ECU from acura and the car doesn't rev past 5 grand. It literally just stops and acts as if 5 grand is the fuel cut off. The car ran fine with the P73 but it is not compatible with the new inspection computer. Could that have been the bad ECU? I am trying everything let me know if you have any other ideas.
At first I had a P73...023 ECU. I couldn't get that ECU to read with the NYS inspection computer. I figured a P72 would work. It is a brand new P72 ECU from acura and the car doesn't rev past 5 grand. It literally just stops and acts as if 5 grand is the fuel cut off. The car ran fine with the P73 but it is not compatible with the new inspection computer. Could that have been the bad ECU? I am trying everything let me know if you have any other ideas.
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From: Bite Me, TX
Re: (ocdcivic)
Same happened to me. It's that crank flux sensor. Can't pass OBD II inspection without it. So either A. Get the sensor and hook it up or B. Convert to OBD I or C. Get a JDM ECU.
I also happen to have an extra crank flux sensor if you need it.
I also happen to have an extra crank flux sensor if you need it.
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From: westchester, NY
Re: (Jowee 1162)
Hey Jowee I actually went and got a flux sensor from honda (USDM) and it looks like it won't go on without grinding the lip on the block down....are you saying that you have an extra JDM one? If so let me know cause I can't seem to figure it out.
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From: westchester, NY
Won't Rev Pass 5 Grand
So like the title says.....
I have a 99 b18 type r JDM motor and tranny in my 99 ls. I just put a USDM P72 ECU in it (GSR I Believe) and I can't get the motor to rev past 5 grand. I am also noticing a check engine light for a crank shaft fluctuation sensor. Could not having that sensor cause my problem? Or do I need a different ECU? Any help would be great.
I have a 99 b18 type r JDM motor and tranny in my 99 ls. I just put a USDM P72 ECU in it (GSR I Believe) and I can't get the motor to rev past 5 grand. I am also noticing a check engine light for a crank shaft fluctuation sensor. Could not having that sensor cause my problem? Or do I need a different ECU? Any help would be great.
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From: Bite Me, TX
Re: (ocdcivic)
It's not your ecu. You can plug any USDM OBD II ecu in and it'll have the exact same problem and throw the same code 54. I've used USDM crank flux sensors on JDM engines before, but don't remember having to modify anything. My spare is a off a USDM GSR.
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From: westchester, NY
Re: (Jowee 1162)
Ok so I tried a USDM p73 and it now stops at 6 grand. It is throwing the code 54 (flux sensor). Now when I had the JDM ECU in it wasn't looking for that sensor nor was it throwing that code. I went to install a new sensor but the USDM one doesn't seem to match up to the block. I don't know if it's because it's a JDM motor and the USDM doesn't fit or what. Any other suggestions???
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From: Browns Summit, NC, USA
Re: Won't Rev Pass 5 Grand (ocdcivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ocdcivic »</TD></TR><TR><TD CLASS="quote">So in theory should the P72 ECU work? I let it warm up and it still doesn't go past 5G.
and who is rodney?</TD></TR></TABLE>
p72 won't work if it is US.....99 jdm itr swaps do not have a oil pressure for vtec....so the ecu does not see this and will throw car into limp mode..
and who is rodney?</TD></TR></TABLE>
p72 won't work if it is US.....99 jdm itr swaps do not have a oil pressure for vtec....so the ecu does not see this and will throw car into limp mode..
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From: westchester, NY
Re: Won't Rev Pass 5 Grand (chad)
Yeah it was in limp mode...with the JDM ecu it doesn't look for the fluctuation sensor but with the USDM it looks for it... i can't seem to figure out what to do....
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From: Chicagoland, IL
Re: Won't Rev Pass 5 Grand (mtber)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jowee 1162 »</TD></TR><TR><TD CLASS="quote">It's that crank flux sensor. </TD></TR></TABLE>
Great Scott!! The Flux Capacitor!!
Great Scott!! The Flux Capacitor!!
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From: NY/Boston, USA
Re: Won't Rev Pass 5 Grand (mtber)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtber »</TD></TR><TR><TD CLASS="quote">Get your self a chipped ecu & conversion harness & call it a day 
</TD></TR></TABLE>
Thats not an option for NYS inspections anymore.
It looks like you need to either get a JDM P73 or install that flux sensor and use the ECU I gave you (USDM P73)
</TD></TR></TABLE>Thats not an option for NYS inspections anymore.
It looks like you need to either get a JDM P73 or install that flux sensor and use the ECU I gave you (USDM P73)
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From: Bite Me, TX
Re: Won't Rev Pass 5 Grand (loud_whispers)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by loud_whispers »</TD></TR><TR><TD CLASS="quote">change your oil.. </TD></TR></TABLE>
LOFL, this coming from a "Certified Honda/Acura Technician" that's also "ASE Certified."
Find a way to rigg that CFS on the block with a USDM ECU or find an OBD II JDM ECU. Take a pic of what's not fitting on what on the block. Are you sure you're looking at the right place to bolt it up or installing it the correct way?
</TD></TR></TABLE>LOFL, this coming from a "Certified Honda/Acura Technician" that's also "ASE Certified."
Find a way to rigg that CFS on the block with a USDM ECU or find an OBD II JDM ECU. Take a pic of what's not fitting on what on the block. Are you sure you're looking at the right place to bolt it up or installing it the correct way?
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From: Houston, Texas, USA
Re: Won't Rev Pass 5 Grand (chad)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chad »</TD></TR><TR><TD CLASS="quote">p72 won't work if it is US.....99 jdm itr swaps do not have a oil pressure for vtec....so the ecu does not see this and will throw car into limp mode..</TD></TR></TABLE>
Yep
Yep
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From: Columbus, Ohio, USA
Re: Won't Rev Pass 5 Grand (ocdcivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ocdcivic »</TD></TR><TR><TD CLASS="quote">OK so I am going to put the JDM ECU back in and I am going to get an illegal sticker. There is no other way. Thanks for all of the help.</TD></TR></TABLE>
I think everyone here gave you a way to do it. Infact multiple ways. You just chose not to install the Crank Flux Sensor, and are now going to use an illegal inspection sticker.
I think everyone here gave you a way to do it. Infact multiple ways. You just chose not to install the Crank Flux Sensor, and are now going to use an illegal inspection sticker.