Hi, I have a 1999 civic ex with b18c swap, with obd1 p28 ecu chipped.. The car runs great,no problems, but when I took it to the drag strip and when I was in 3rd gear at around 7500 rpms, the CEL light popped up, and the car died, and when I started it up, the code was gone, but when I hit past 7k rpms in 3rd gear, it dies again. Idk whats the problem, and it would be great if some one could help, (from what I heard was that b18c motors(jdm gsr) have no vtec pressure or something like that.)

 

Come on!!! Need to find out, do I just splice the vtec pressure wire to the vtec solenoid??since it a jdm motor, an it doesn't have vtec pressure sensor???

 

22 VTEC pressure valve. Thats the code on my list so just take the solenoid off and clean the screen/ plus the stuff inside it. Since there is not a pressure switch on a jdm motor is your ecu jdm or usdm? A usdm ecu is going to look for that pressure sensor switch every time, if so I would recommend buying a presssure switch(screws right on). But cleaning the solenoid can very much solve the issue.

 

The one on the right is USDM and the green cap is the pressure switch. If you do not have that plug yes you will have to run a wire from the ecu to the sensor.

 

I just hooked up the pressure switch wire, to the vtec soleniod wire, and it runs great