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OBD1 vs 2 Dist

Discussion in 'ECU's, Electronics, and Tuning' started by ludegirl, Nov 30, 2003.

  1. ludegirl

    ludegirl Senior Member

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    Hey, im converting to obd0-1 and i have what i need, but a distributor, I have and obd 2 vtec dist out of a 99 SI and I wanted to know if it would work???, also I have obd2 injectors which i assume will work since i thought they are the same as obd 1 thanks guys...
     
  2. h22bubbleback

    h22bubbleback Senior Member

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    its very easy to convert...obd2 is just like obd1 but the plugs are put together to make 1 plug
     
  3. ludegirl

    ludegirl Senior Member

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    so the wiring is the same then, same pins right? how about colors, are they the same, thanks im careful about this stuff now since i saw i guy burn up the harness out of an ef when he flipped some wires around..
     
  4. pills_PMD

    pills_PMD Super Moderator

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    i'm confused.. exactly what ar eyou doing??

    what car/engine/ecu etc.?
     
  5. ludegirl

    ludegirl Senior Member

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    haha, i can see my have been confusing to the question...im converting my 91 rex, b20 vtec, to obd1 from obd 0, i have all that i need, conversion harness, 02 sensor, distributor, and fuel injectors, however, the distributor is from a 99 SI which is obd2 and the injectors are from a 97 jdm ITR...i was wonder, since the distribuotr is obd2, will it still work, and what needs to be done to make it work, then somone responed that the wires are the same but in differenent plug locations, so i asked if they are the same color from the distributor to the plug, or, if this is worng, what needs to be done, and will the obd 2 fuel injectors work without any problem/conversion....phew...thanks!!!
     
  6. radnulb

    radnulb Senior Member

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    OBD2 injectors will work on an OBD1 ECU just fine.
    You will probably need bigger injectors if you plan on revving that motor at all - stock ITR injectors run 95%+ duty cycle in a 1.8L let alone a 2L.

    The cheap upgrade is to use DSM 450s and a resistor box - under $100. You will definately need the ECU chipped if you decide to go this route. There are decent 2L vtec bins on pgmfi for 450s... My homie Nick posted his for sure I know.

    The other popular upgrades are 290CC saturated from either RC or a 97-01 Prelude H22. Also RC make a 310cc saturated. Also, 92-95 H22A preludes use 310cc P+H (resistor box). You can also get any turbo 4cyl ford (probe, capri, etc.) for 330cc peak+hold. Auto DSMs are 390cc P+H.

    I can't answer your question on the distributors off the top of my head. I have a 99 Civic and 95 civic helms manual just for that reason...
     
  7. ludegirl

    ludegirl Senior Member

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    anyone know about the distributor?, yeah as a side note to radnulb's post im going to run hondata...
     
  8. ludegirl

    ludegirl Senior Member

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  9. civicious

    civicious FüK-VTEC VIP

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    the wires are the same color above the distributor plugs.


    i.e. the colors on the harness are different, but compare the colors on the wire between the plug and the distributor, and they're the same from dizzy to dizzy.



    did that make sense?
     
  10. radnulb

    radnulb Senior Member

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    ludegirl, do yourself a favor and get bigger injectors NOW before you start tuning the car because you'll find that with the tunability of a hondata, you'll really need them. You'll thank me later.

    290s might cut it depending on your fuel pressure and revlimit.
    310s are starting to sound better you could probably hold a 8500 RPM redline at clsoe to stock fuel pressure and not be killing your injectors.
    330s are starting to be overkill.
    390s would be overkill.
    450s would be overkill.

    You can make the car idle smooth, pass emissions and get good mileage with hondata and 450s. Due to their cheapness and availability, they represent GREAT value for money.
     
  11. Joseph Davis

    Joseph Davis Member

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    Dave, Probe and Capri XR2 are repackaged Mazdas; actual turbo Fords, meaning the 2.3T cars, ran 35 lb/hr aka 350cc injectors. No idea what the CVH powered Escort EXP got.

    Also, I've seen conflicting reports on auto DSM injectors being 350cc and 390cc, know of anyone who's flow tested them?
     
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