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B16a rough idle and stalls

Discussion in 'Engine Building' started by Jayden6209, Sep 4, 2012.

  1. Jayden6209

    Jayden6209 New Member

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    hey everyone i am new to here and sorry if im posting in the section

    but im having a problem of my own ive search other forums but didnt get the right answers any ways down to the point

    i have a 93 civic with a b16a swap running a PR-3 ecu and just recently my car started having a rough idle and every now and then it will stall while im driving and press the clutch but i can start it right up again. ive change the IACV and a new MAP sensor and i also cleaned the FITV new plugs, wires, and even a new dizzy and the problem still happens if any of you have any ideas that would help that would be great.

    Thanks
     
  2. CAFROG

    CAFROG Honda Minion VIP

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    Test the volts of the TPS at closed throttle and WOT (key "on" motor off)
     
  3. Jayden6209

    Jayden6209 New Member

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    Would the tps have anything to do with my car not starting everytime? Every now and then when i go to start it i have to press the gas to get it running but as soon as i let my foot off the gas it will shut off.
     
  4. Briansol

    Briansol Admins Admin VIP

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    Yeah, the tps may be closing to much so there's not enough air getting in to keep it running. There's an idle set screw on the TB as well that you may need to open up a bit more to let some more air in to keep it happy.
     
  5. Jayden6209

    Jayden6209 New Member

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    Yea i have tried that and it still shuts off after i let go of the gas. The car is fine while im driving it the problem is getting it to start with out me pressing the gas first
     
  6. Jayden6209

    Jayden6209 New Member

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    ok so i had a CEL on and if i did this right it said code 12 and 14 which code 12 says EGR valve and my car doesnt have an EGR valve and for code 14 it says the IACV and i replaced it with a new one. does anyone know why its throwing those 2 codes really need some help
     
  7. CAFROG

    CAFROG Honda Minion VIP

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    Could be the wiring on the IACV (actual wires from engine harness to ECU)

    You can check continuity to rule it out. (Helm's manual FTW)

    Gum'd up and dirty IACV's often don't throw a code. So....wiring.

    No EGR is why the other code is out there.

    Getting codes....Long flash is increments of 10's. Short flash are increments of 1's
    Long pause is a new code coming up.

    From my knowledge....FITV is idle control at cold start and IACV is idle control at running temp.

    But it sure sounds like TPS.....car dies and such. But I'm not ruling other things...like your CEL's
     
  8. egdro

    egdro New Member

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    are u sure its not your timing belt? maybe off by a little
     
  9. Jayden6209

    Jayden6209 New Member

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    ok so i fixed my CEL and i was checking my timing belt and it was loose and i turned the crank to TDC (top dead center) and i notice one of my cam gears is off a tooth and my questions are is there a way to just lossen the belt and put the cam gear back in time?
    and also is it bad to drive the car like this?
     
  10. CAFROG

    CAFROG Honda Minion VIP

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    You can get the belt loose and move it back using the tensioner. And yes it's bad to be off timing. Not to say it has ruined you motor but you should get on it ASAP
     
  11. Jayden6209

    Jayden6209 New Member

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    ok i just wanted to make sure i can just loosen the tensioner and put the cam gear back in time i really didnt feel like doing the whole timing belt unless i really had too
     
  12. Jayden6209

    Jayden6209 New Member

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    is there anything else that i need to do besides just loosen the tensioner?
     
  13. CAFROG

    CAFROG Honda Minion VIP

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    Gently get a pry bar on the tensioner and move it to release the tension. Then take belt off and move it. Put tension back on belt (gentle pry bar) and tighten tensioner back down.
     
  14. Jayden6209

    Jayden6209 New Member

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    ok but do i have to put every else back in time aswell?
     
  15. Jayden6209

    Jayden6209 New Member

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    ok so i put it back in time but the car still runs like crap. i also unplugged the TPS while i had the car running and the car idle a little better i drove it around the block and it ran good but then when i pulled it into the drive way and let it idle for a while and it went donw a little and it started bogging out like it wanted to stall would that mean i would need a new TPS or is there a way to adjust it?
     
  16. egdro

    egdro New Member

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    well i think u need a new one i dont belive theres a way how to adjust that
     
  17. Jayden6209

    Jayden6209 New Member

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    yea i will be getting a new one. does anyone have any other ideas of what my problem can be? i havent driven my car in over a week please i need my car!!!
     
  18. Briansol

    Briansol Admins Admin VIP

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    Do the TPS and check the IACV as well.
     
  19. Jayden6209

    Jayden6209 New Member

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    i put a brand new IACV in i was reading there is a trick with the holes inside the throttle body but i forgot which one is which and what it was sopose to do i know you cover the hole and if something stops im not to sure what it is if any one knows can they help me with that?
     
  20. tjai

    tjai New Member

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    Did you fix it yet?? If not did you check the map sensor?
     
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