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ecu wiring diagram.

Discussion in 'Civic and CRX - EF' started by uptownsamcv, Apr 6, 2009.

  1. uptownsamcv

    uptownsamcv New Member

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    i was wonderign whre ei can get a ecu wiring diagram. i had bought a haynes book at teh parst store btu it wasn tmuch help. i just need to find where the white igniter wire goes to on the ecu plug. i was testign the igniter and there wasnt any continuity between the white solid wire and body ground. i knwo ther eis continuity all the way to the distributer plug now i just need to check the coninuity for that wire through the ECU harness.
     
  2. deliriousg69

    deliriousg69 New Member

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    what ecu do you need the wiring diagram for?
     
  3. Briansol

    Briansol Admins Admin VIP

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  4. uptownsamcv

    uptownsamcv New Member

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    well i just needed the diagram for a PR4 btu arent all the non obd harness from 88-91 the same? from what i see on the pinout chart the wires on b15 and b17 go to the igniter. does that mean one or the other or does it mean thatthere are 2 different wrings runnign from the igniter to the ecu?
     
  5. jlicrx

    jlicrx Senior Member

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    the igniter wires from B15 and B17 connect together inside the harness and become one wire running to the distributor
     
  6. uptownsamcv

    uptownsamcv New Member

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    sweet. so if the way is good throughout the harness and checks otu ok that would mean the ecu is bad right?
     
  7. uptownsamcv

    uptownsamcv New Member

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    i went ahead tested continuity for the white igniter wire that goes to b15 and b17 according to teh pinout . there seems ot be contiuity all he way through the white igniter wire to the ecu plug at the ecu. could my ecu have goen bad internaly some how from all that oil being on the wires? what else should i check?
     
  8. jlicrx

    jlicrx Senior Member

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    you never said what the problem was - do you have a code 15 on the ECU? - does it not start? - you could need a new igniter in the distributor
     
  9. uptownsamcv

    uptownsamcv New Member

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    i have no spark. the coil, igniter, plug wires and plugs are new. i did the igniter input test and all the wires checked out except for the white where. it has no continuity to body ground and the repair manual said it should. i have continuty from its conector at teh igniter all the way to the ecu harness plugs B15 and B17. the manual say if the wire has no break to the ecu to check ground G101 and G151. but i have no ideas what those are.
     
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