1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

b18a1 fuel problem

Discussion in 'Civic and CRX - EF' started by efcivic4dr, May 1, 2008.

  1. efcivic4dr

    efcivic4dr New Member

    Messages:
    83
    Likes Received:
    0
    Joined:
    Apr 22, 2007
    Location:
    cedar rapids, iowa
    I have a b18a1 in my 91 4dr. Its throwing code for injectors (16). Before it was for fuel system supply (43). When you turn the car on it sounds like a Subaru and it revs out at 3000rpm. When you give it gas it just BLOWS white smoke and sprays gas. Its like the gas is just straight blow by. Sometimes at the downpipe flange it will blow a gas/oil mixture from there. but its not loosing much oil its just burning it. So the car is running extremely rich. Like i said, i messed with the fuel system and that code is gone. I didnt have an extra set of b18 injectors but i used d16a6 which are the same ones. The only thing i havnt changed is the resistor box. Can that be the cause since that is part of the injectors?

    any help will be great thanks

    -Carl-
     
  2. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    I'm not 100% sure but obd0 injectors are saturated, obd1&obd2 are peak and hold, what is obd is the motor? I dont think you need to have the resistor box wired in its sending the wrong ohmage to the injectors and is probably causing the injectors to say open all the time.
     
  3. efcivic4dr

    efcivic4dr New Member

    Messages:
    83
    Likes Received:
    0
    Joined:
    Apr 22, 2007
    Location:
    cedar rapids, iowa
    Its OBD0 everything has ran fine before, the swap wasnt just done. This problem just started occuring and im at a loss on what it could be.

    -Carl-
     
  4. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    sounds like your injectors are staying open the whole time, check the votage coming out of the resister box and see if its in manufactures specs.
     
  5. efcivic4dr

    efcivic4dr New Member

    Messages:
    83
    Likes Received:
    0
    Joined:
    Apr 22, 2007
    Location:
    cedar rapids, iowa
    How exactly do i check the voltage on the resistor box? I have a voltage meter... Also, have any idea what the specs are on the resistor box? thanks, i have a STRONG feeling it is the resistor box. Trouble shooting is the key to all problems i guess ;)

    -Carl-
     
  6. t3t4delsol

    t3t4delsol New Member

    Messages:
    652
    Likes Received:
    12
    Joined:
    Mar 18, 2008
    Location:
    York, Pa
    im not really sure of the votage but I think its between 10-12 ohms, to test it unclip one injector clip and touch the leads on the clip
     
  7. efcivic4dr

    efcivic4dr New Member

    Messages:
    83
    Likes Received:
    0
    Joined:
    Apr 22, 2007
    Location:
    cedar rapids, iowa
    Sounds good, ill try it today. thanks

    -carl-
     
  8. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    Ohm's are measurements of resistance, not voltage.
     
  9. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

    Messages:
    6,148
    Likes Received:
    99
    Joined:
    Feb 28, 2003
    Location:
    Moving back West...
    You got it backwards... OBD-0 Injectors are peak and hold, that's why they use the resistor box. obd-1 and obd-2 injectors are saturated.

    Something just isn't adding up... 43 isn't a valid obd-0 code. obd-0 codes stop at 23, if I remember correcty. Are you using a jumper harness with an obd-1 ecu? If so, that's your problem right there. Along with the obd-1 conversion you need to swap over to an obd-1 distributor and 4-wire o2 sensor.
     
  10. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    If your reffering to "oem" injectors, than b16 is 100% correct. BUT, they do offer peak and hold for obd1/2 cars (aftermarket), but this is not neccessary unless your running much larger injectors, usually for big boost applications. :thumbsup:
     
  11. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    There is some food for thought.
     
  12. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

    Messages:
    6,148
    Likes Received:
    99
    Joined:
    Feb 28, 2003
    Location:
    Moving back West...
    Come on, don't act like a noob and get all technical with it lol... read the OP's first post, he's obviously not talking about after market injectors...
     
  13. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    I'm a technical kinda guy, what can I say? :)

    Now, he did say it was running fine prior, the problem just started happening.
     
  14. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

    Messages:
    6,148
    Likes Received:
    99
    Joined:
    Feb 28, 2003
    Location:
    Moving back West...
    What he said didn't make any sense lol... 'it was running fine before but the swap just wasn't done'... I don't see how a car can run fine with an incomplete swap lol...
     
  15. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    Carl, off the top of my head, I would take a good look at the intake manifold and the fuel lines after the filter, all the way to the fuel return on the opposite side of the firewall. Also check your fuel pressure regulator, and your throttle body/cable. Thats a start. As far as loud "subaru" noise, you probably have a leak down by the collector, and if your burning oil, it will definately come out of that leak. Most likely pistons rings are bad, which is causing the oil to burn through the exhaust.
     
  16. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    I understand, but its clearly obvious that something wasnt done correctly during the swap, and now whatever it was has "given up", so to speak, and is causing problems. If he has a leak in the exhaust, depending on how close it is to the oxygen sensor, it can and will throw a code. Which code, I do not know. Im mostly obd1/2 kinda guy, not obd0 but its all fairly the same in a technical aspect.
     
  17. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

    Messages:
    6,148
    Likes Received:
    99
    Joined:
    Feb 28, 2003
    Location:
    Moving back West...
    I hear ya but the thing i'm stuck on is he said he was throwing a code 43 before... that's not a valid obd-0 code. OBD-0 codes stop at 20 for usdm ecu's and at 23 for jdm ecu's (which is obviously vtec pressure switch, solinoid, and knock sensor) I think he's leaving out a few details about this swap which would help allow us to help him even more.
     
  18. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    I agree with you here. Maybe he mis-counted? With obd0, if I am mistaken please correct me, but you have to count the blinks of the cel? Or is there a light on the ecu?
     
  19. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    Let me check alldata real quick and see if I can find anything...
     
  20. LS_VTEC

    LS_VTEC you get the BRAKE

    Messages:
    2,616
    Likes Received:
    25
    Joined:
    Dec 11, 2007
    Location:
    NJ
    The only thing I can relate to a code 43, is a code 4-1 to 4-8, which is in relation to the speed sensor. If this code does show, than it will put the ecm (ecu) into a fail safe function. Other than that, I need to see the car in person to diagnose it.
     
Verification:
Draft saved Draft deleted

Share This Page