Idle RPM on EK9 ? (PCT ecu on EK4)

Discussion in 'Engine' started by GC106XT, Aug 8, 2018.


  1. GC106XT

    GC106XT New Member

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    Hello all,

    I have an EK4 (98) with B16A2 engine (ODB2A), I rebuild the head with DC2 (98) camshaft, and with valve spring, and head mileage to have 10.8:1 (0.045mm), I mount also a DC2 fuel regulator, rail and injector.
    I have but not mount actually an EK9 intake manifold with IACV an IAT. I use an OEM IAT before the BT at this time (I will make a "harness" to use the EK9 IAT on intake manifold).

    Actually, I run with a P28 ecu tuned, but it too rich and the Vtec is to early, I bought a PCT ecu ODB2A to test.
    It run good but I have the idle to 1000 RPM, and it not decrease with the AC, light ...
    And when I slow down, the rpm takes time to come down.

    With my P28 or OEM (P2T) ecu, the idle are in 800/850 RPM. I test with unplug IACV and jump a diagnostic plug, the idle are to 500 RPM, so, I don't touch the iddle screw on body trottle, and I haven't any problème to slow down.

    IACV are good and clean, map it's ok ...

    I would like to know the real idle RPM on EK9 (I not found this information) and I don't found the EK9 Workshop. And why I slow down, the RPM decrease slowly with PCT Ecu ?
    And if it's possible to use a PCT a long time on my engine, because it's with this ecu that I have a best feeling.

    Thanks a lot (and sorry for my english, I work it !!!)
     

  2. GC106XT

    GC106XT New Member

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    Hi,
    I bought a Hondash to test the PCT on my EK4, and I found one code error : Default ELD > Code 20.
    I search on the net but I don't found this information, what is the pin to ELD on the Ecu to EK9 ?
    On my car, it's normaly D16 pin on Ecu .

    Thanks all !
     

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