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vtec engaging at 4500...!

Discussion in 'General Tech and Maintenance' started by 6spd_dc2, Aug 18, 2007.

  1. 6spd_dc2

    6spd_dc2 New Member

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    okay i know vtec should kick in at 5500 rpm, but for some reason mine engage at 4500 rpm. I have a obd2 car completely rewired for obd1 with an obd 1 gsr motor. I check the vtec wiring and its okay. Im also running a stock p72 ecu and only thorwing code 41 for my secondary o2 sensor. So here is my question. Is there any harm by vtec engaging a whole 1000 rpm early?
     
  2. jamesA

    jamesA Well known pissed off telephone guy VIP

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    Get a P28 or a P2T if you want it to engage at 5500 rpm. You have a GSR ECU which engages at 4500 rpm.
     
  3. welfare

    welfare Ancient Member

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  4. eg6sir

    eg6sir Supa Mod Moderator VIP

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