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  1. #1
    Gold Member crazyhondahead's Avatar
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    Sep 2010
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    Shikoku,JAPAN!!
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    b20b ecu question

    i have a jdm b20 motor with ls transs...i wanna use a 99 si ecu(p2t)..will the ecu make the swapp runn good??

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  2. #2
    Noob
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    Apr 2010
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    Co springs
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    The p2t from what I under stand is a b16 obd2 ecu. It will run the motor but not good. The b20 needs more fuel then a b16a at lower rpms its a torque motor. The other problem is the p2t will be trying to kick vtec. You don't have vtec or a vtec pressure switch. It will trow a vtec code. The best thing to do is get the ecu for your motor or get a chipped ecu and tune. List of ecus PGMFI.ORG - Grassroots ECU Development - Library . EcuDefinitionCodes

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