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ecu question for a d15b2 to d15b6

Discussion in 'Civic and CRX - EF' started by hatchstatus62, May 13, 2009.

  1. hatchstatus62

    hatchstatus62 New Member

    Likes Received:
    Apr 9, 2009
    san diego
    I have a 1990 civic hatch dx that had the original d15b2 and the rings whent bad so I threw in a d15b6 from a 1991 crx hf. I am using the intake manny, headers, and ecu from the b2 (original) but I am using the dizzy from the b6. My question is should I run the hf ecu along with the hf dizzy or or should I run the dx dizzy and ecu. It runs good the way it is now but I think its running pretty rich and I also noticed my exhaust is waaaaay quieter with this engine than when I was running the b2. I'm running a kensie full cat back exhaust. Thanks for any advice.
  2. jlicrx

    jlicrx Senior Member

    Likes Received:
    Jun 5, 2003
    Colorado Springs
    using the DPFI intake manifold, you need to use the ECU and distributor from the D15B2 engine - the HF ECU and distributor are for MPFI
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