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swap help!!!

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    #1

    swap help!!!

    ok i finally got my vtec to work and then my cel comes on for the knock sensor now the car revs up and down when im in neutral, its turning into one big headache, also the car has the same hesitation everyone has between 1500 to 2500 rpm.... does anybody recommend anybody or can have helpful hints????
    Tags: None
    #2
    What motor?
    What transmission?
    Auto or manual?
    What ECU?

    I'll assume you have an h22.

    Are you knocking? If not, check your wiring.
    I've never had any hesitation... not sure what you mean by that.
    As for the revving up and down, clean your IACV, and adjust the brass screw on the throttle body. Turn it a bit, rev the engine up briefly, and let it settle. Your idle should be around 800... though mine seems to be most comfortable around 900-1000.






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      #3
      its a 92 accord with a jdm h22 with a p13 manual, and yea now that you mention it the car did start reving up and down after my mech turned the screw in the throtttle body .... wat do u mean by knocking??? i mean now i do seem to hear the valves a little louder then usually....wat could dat mean?

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        #4
        Knocking... what the knock sensor detects. The knock sensor is a microphone, and it listens for rod knock... which is literally that... your internal parts knocking (or it could also detect detonation, which is an uncontrolled explosion in the combustion chamber... it'll happen if you run less than premium gas). If you're getting a CEL for the knock sensor, there's probably something wrong with the sensor, or the way it's hooked up (if it's hooked up at all).


        As for the valves ticking (could also be injectors), that's fairly normal on an H22. Honda motors have very noisy valvetrains and injectors. Adjusting the valves properly would reduce the noise. Switching to a lighter weight oil can also help (acclude91 has a good writeup on 0 weight synthetic oil... I haven't tried it myself yet)


        So, to fix the revving... adjust that screw. Clean the IACV (search the DIY section, I believe someone did a writeup... very easy to do). If that doesn't fix it, search for a vacuum leak somewhere. If THAT doesn't fix it... we'll have to look deeper






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          #5
          yea like an idiot i filled up with 87 but i wanna drain or something and put 93 octane u think maybe thats y the knocking sensor lit up, also if u close the screw all the way to the left does that affect the engine in any way? (left-closed right - open?????)

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