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obd2a jdm gsr motor on usdm ecu

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  • obd2a jdm gsr motor on usdm ecu

    ok heres the issue ... the obd2a jdm gsr motor has no vtec pressure switch on the solnoid ??? thats new to me ive never seen that before .. has everything else .. soo how am i to wire up the vtec to the usdm ecu (that looks for a pressure switch) without the pressure switch?? any one find this before ? or have a fix for it please let me know!!!

  • #2
    change the solinoid
    Follow me @bolacan413
    Follow the build @k_insight

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    • #3
      i know i just fuckin had one on my b16 head !!! and i sold it ... it sucks ... those are expensive .. know anyone whos got one ??

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      • #5
        i have a vtak solonoid ill trade you for the bearings
        pm me
        Honda sucks. Over priced junk.

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        • #6
          Dont listen to these dudes i have the same setup as you with the single wire solenoid. All you have to do is a vtec oil pressure switch bypass and a crankshaft fluctuation sensor bypass. These are very basic/easy fixes that will cost you about $3 total. Youre also gonna have to wire in a knock sensor somewhere or youre never gonna make your full power (it gets put in a base timing mode without a knock sensor which = slow)

          Heres how you bypass the CKF sensor:
          This document describes a trick to fool a US OBD2a or OBD2b ECU into thinking a Crankshaft Fluctuation (CKF) sensor is connected when there is no actual CKF sensor. It involves tapping the CKF signal into the Crankshaft Position (CKP) signal using scotch-lock wire splices on specific ECU pins. This saves the cost of a CKF sensor and prevents engine running issues when a JDM engine without CKF is used in a US OBD2 vehicle. The procedure involves locating specific ECU pins and quick-splicing wires together based on the vehicle's OBD2 type.


          For the oil pressure switch bypass: All you do is splice together the VTS and VTM wires and you get vtec :) The VTS is pin 8 on connector A and the VTM is pin 15 on connector C
          Heres a pinout of your ECU:


          Your engine will be runnin minty fresh once you fix these problems

          (On a side note, if you decided to use the "quick splicers": Make sure you close the splicer over the wires like normal, then remove it and check if the splicer actually cut through the wires. In most cases it wont cut completely through, and you will have to split the wire casing yourself. This should save you some time and headaches down the road. Do it once do it right!) Good luck
          Last edited by POS civic; 05-16-2010, 10:10 AM.
          http://i262.photobucket.com/albums/i...3_105049_1.jpg

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