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90 CRX si PM6 to PG7 ecu swap

Discussion in 'Civic and CRX - EW' started by joenard, Jul 26, 2007.

  1. joenard

    joenard New Member

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    I have a Canadian model 90 CRX si with a pm6 ecu and a DOHC ZC swap. I just bought a used pg7 ecu and I thought I could just plug it in to my existing harness and go. Apparently not. When I try to start the car it just rolls over like its not even sparking. Do I have to make changes to get this ecu to work?
     
  2. jlicrx

    jlicrx Senior Member

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    the PG7 from the 88-89 Integra will work - 86-87 Integra will not work - see pictures below - 88-89 on left - 86-87 on right
     

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  3. jlicrx

    jlicrx Senior Member

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    the number on the 88-89 ECU should be 37820-PG7-A0# - on the 86-87, it is 37820-PG7-A66 (these are for manual transmission)
     
    Last edited: Jul 26, 2007
  4. joenard

    joenard New Member

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    shit, mine is pg7-033

    it looks nothing like those two....it has a big triangle mounting bracket on the opposite side of the wiring harnesses...the date stamped on it is 12,12,85.... obviously i have the wrong one so i guess i'll just sell er an get a different one. thanks!
     
    Last edited: Jul 26, 2007
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