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.

 

That sounds like the real 'limp mode'. Fix the cel and you should be fine. You can either add the sensor, or get a chipped p28.

 

Do you know if a chipped P28 would be compatible with the NYS inspection system. That is the problem I am ruinning into getting the car to pass inspection.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ocdcivic &raquo;</TD></TR><TR><TD CLASS="quote">Do you know if a chipped P28 would be compatible with the NYS inspection system. That is the problem I am ruinning into getting the car to pass inspection.</TD></TR></TABLE>


If it's chipped it should work good and pass also

 

most likely the ECU. it hapend on my swap, the car starts to lag around 4500 rpm then at 5000 the rpm stick just stops.

 

Yeah it literally just stops but I got a hold of a P73 so i am gonna try that out tommorow. Thanks for all of the help and I will let you guys know what turns out.

 

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???