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  1. #1
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr

    ek b18c7 swap fuel pump issues

    i've just finished doing a b18c type r swap from a dc2 into my ek1.
    I'm using an ek4 harness and an obd2a to obd2b adapter and using the original dc2 ecu.
    I lengthened the wiring harness to the ecu and tucked it through the quarter panel.
    I had spark issues. fixed that
    But now my fuel pump isn't priming when i turn the key. (can't hear it and nothing sprayed when i loosened the fuel filter)
    The car turns over and has good compression.
    The g101 - i think it is- ground is good.
    The main relay doesnt seem to be the problem as i have checked it and swapped out the b series one.
    All fuses look good.
    Could it be the wiring harness - wrong cable spliced together- only ask cause they are three or four that are identical colours and may have accidentally mixed them up.
    I need it running for work as im a contractor
    Any and all help will be amazing.
    Last edited by Dyln.bxtr; 12-08-2013 at 08:13 PM.

  2. #2
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    And ecu definitely clicks.

  3. #3
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    I've done the jumper test from pin 5 to 7 and have fuel pump action. although it doesnt shut off. is that because its the main relays job to shut off?

  4. #4
    Green block gangster Array
    Join Date
    May 2004
    Car:
    twin GX160's
    two things of concern in your first post.

    you state B18C7, EK4 loom. EK4 loom is OBDIIA, the B18C7 P73 is also OBDIIA. why use a OBDIIA to OBDIIB conversion harness ? are you sure you have an EK4 harness and not EK9 or EM1 ?


    have you bypassed the immobiliser ?

    are you 100% you got the wiring correct with the wire tuck ?

  5. #5
    yeah doesn't sound right, show us a pic of the ECU plugs

  6. #6
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    i may have an ek9 loom. that im not sure about but it is b not a.
    I'm almost 100% other than the three or four which were the same colour.
    i have a new main relay and still nothing

  7. #7
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    I just checked continuity and this is what i got. due to the amount of negatives i have im assuming there is a wiring issue

    Pin 1 +
    pin 5 +

    Pin 2 -
    Pin 3 -
    pin 6 -
    Pin 7 -

    Pin 8 nothing

  8. #8
    It sounds like you're trying to use an EK9 OBD2b engine harness, which is not gunna work.

    Do you have only 2 ECU plugs on the engine harness? (Not on the adaptor)

  9. #9
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    yeah only 2 plugs on the harness.....

  10. #10
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    so wrong loom? cool.....
    is there anyway of getting running?
    can i just use the ecu plugs off of the type r loom??
    Last edited by Dyln.bxtr; 13-08-2013 at 04:29 PM.

  11. #11
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr
    and immobiliser was swapped in to the existing system. its all fine and working well

  12. #12
    Member Array
    Join Date
    Jan 2013
    Location
    Brisbane, qld
    Car:
    98 ek b18cr

    ek b18c7 swap fuel pump issues

    Closed
    Last edited by Dyln.bxtr; 12-11-2014 at 12:07 PM.

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