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D15B 3000 rpm max

Discussion in 'Civic and CRX - EF' started by Sofast, Mar 26, 2010.

  1. Sofast

    Sofast Member

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    I installed a D15b JDM into a 90 si hatch for a friend. I was called off to work in another state. when I returned a shop finished up the work. They went from obd to obd1. The car has a hard start and will not run over 3000 rpm. it ran this way before the obd to obd1 swap as well. I verified timing and is perfect. when running it runs smooth at idle up to 3000 rpm. The check engine light is on. Do I use the same method to check that timing light now that it is obd1? Has anyone had this same problem
     
  2. civichatch1988

    civichatch1988 Ef hatch

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    Im betting it's your TPS sensor check codes should be same just jump the connection
     
  3. blk91b18

    blk91b18 New Member

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    Crank position sensor, tdc sensor or cylinder sensor...my four door did the same thing til i swapped out the dizzy.
     
  4. Sofast

    Sofast Member

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    I was thinking dizzy as wel. i will check it all out. thanks
     
  5. Sofast

    Sofast Member

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    I found that whomever did the obd1 conversion left an empty plug with a blank in it. It is supposed to be plugged to the resistor box and it is not becuase it has the obd0 resistor box in the car. But the car will run???? barely but it will run. Is this possible? can you bypass the resistor box to run. any suggestions?
     
  6. K2e2vin

    K2e2vin Senior Member

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    ECU is in limp mode. If all sensors, etc. are good, try another ECU.

    As far as the resistor box, if it's OBD1 injectors; don't need it. If it's OBD0 or any peak and hold(low reisitance; ~2-5ohm), then you definitely need it(running peak and hold injectors without resistors can fry the Honda ECU).
     
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