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Will a EK harness in My EG

Discussion in 'HYBRID -> EG-EK / DC' started by Domi31, Sep 3, 2007.

  1. Domi31

    Domi31 Member

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    Just like the title reads. 97 B18C in 92 hatch

    I want to have my swap bar'ed (get it legal) here in Cali. The ref wants me to run a USDM OBD2 P73, and have all the SMOG sensors and equipment on the motor, Also my ref said he frowed on the OBD1 to OBD2 jumper:(. My thinking is If i could use a 96-98 EK one-peace harness in my 92 EG hatch it will be total factory looking. I just need to know if everything, like guages and CEL, will still work.

    I would hope to get a hold of a EX harness but would settle for a CX + Rywire.com. But I just want to make shure that it will work.
     
  2. killercannible

    killercannible Senior Member

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    The two harnesses are basically identicle, the only difference is some of the in cabin socket/plug locations a few misc plug differences(distributor, injectors, ect). I would suggest using the obd1-obd2 jumper harness because converting to the ek harness will not be worth your time. Basically all the jumper harness does is change the plug so i don't see why the rep wouldn't like it. It will make you able to run obd2 and not have to change harnesses. The only thing you will have to do is use an obd1 distributor or cut the plugs off the dizzy and swap them for obd1 plugs and use your stock obd1 injectors(same as the type r's).
     
  3. Domi31

    Domi31 Member

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    Yeah I dont know why they dont like the jumper. It really matters on the ref. Some guys I read just wrap them up in electric tape to try to make it look factory. I also want to get a OBD2 harness because it has all the needed sensors that my JDM motor did not come with, like the CKF sensor or the 2nd 02 sensor.

    So aslong as the EK will be compliant with the EG i am going this route, as long as the CEL works so codes can be pulled
     
  4. civicious

    civicious FüK-VTEC VIP

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    What? NO!

    EK and EG harness are nowhere NEAR identical...They aren't compatible. Period.

    The sensors plugs are mostly the same, and in the same location for the most part, that's about it. Injector plugs are different, the distributor plug is different, the EK has a CKF sensor whilst the EG doesn't, the EG has the IAT on the intake manifold whilst the EK has it on the intake tract...

    That, and the harnesses themselves are DIFFERENT. On an EG, the engine harness connects to the in-car harness at each shock tower. The EK connects to the driver's side of the in-car harness on the driver's side shock tower, but the EK's engine harness goes directly to the ECU on the passenger side - there isn't any type of plug or connector between the engine harness and the in-car harness on the passenger side shock tower (like in the EG). The only connection to the in-car harness that the EK has is a small plug inside of the vehicle that connects the engine harness to the dash harness.

    If you want to use an EK engine harness in your EG, you are going to have to re-wire your ENTIRE car. That means pulling all your interior, pulling your dash, finding a complete harness from an EK, and putting the ENTIRE EK harness in.

    If you want to use an OBD2 ecu, you're pretty much going to have to just add wires to your existing harness (such as for the CKF and secondary 02)...it's going to be time consuming, but NOWHERE near as time consuming as trying to convert the whole thing to an EK harness.

    If they're giving you problems about the jumper, just go wire-by-wire where the OBD1 ecu plugs plug into the jumper, and bypass the plugs (meaning clip the wire on either side of the plugs and solder them together), so that you have your EG harness soldered to the jumper, and the jumper plugged into your ecu. Again, it's going to be time-consuming, but NOWHERE near as time consuming as swapping out your ENTIRE engine, dash, and in-car harnesses.

    edit: Also, if your car is a 92, he shouldn't be trying to pull OBD2 codes from it...You might want to just try going to a different ref before anything else. Just because he frowns on something doesn't make it illegal. He could 'frown on' yellow cars if he wanted to, but that doesn't mean that he can fail them simply because they're yellow.
     
    Last edited: Sep 3, 2007
  5. Domi31

    Domi31 Member

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    Thanks for the info;)
     
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