1. New Forum Software:
    We have finally upgraded the forum software due to it being so outdated. If you are having any issues with new forum please let us know. Please post any issues in this thread http://www.clubcivic.com/forum/threads/clubcivic-com-forum-upgrade.227221/

Strange engine hesitation

Discussion in '6th Generation Honda Civic (1996-2000)' started by JohnS., Dec 2, 2011.



Welcome to ClubCivic a Honda Civic Forum

Club Civic is an online Honda Civic forum and community for all Honda Civic enthusiasts. Whether you own a Honda Civic Si, Ex, Type R, Dx, Lx, Cx, Dx, Vx, or even a hybrid you will find valuable information and honda civic car parts on this site. Take a look around to view Honda Civic discussion; including a photo gallery, maintenance information, tech tips, as well as ways to get better performance from your Honda Civic. Visit the Members Ride's to view and rate other member’s Honda Civics. Click here to start viewing the Honda Civic Forums. Before you start posting on this site you will need to register. If you are already registered and not logged in, please login here.

Browse the forums by generation by clicking below or browse all honda civic forums.


  1. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    I've got this weird hesitation/bog with my car. For those that don't already know, it's a 99 ex (with stock y8) with 224k miles.

    It only used to do it every now and then but it's starting to do it more often. Sometimes if I go WOT in any gear, it will bog REALLY badly and the car will start shaking and...the best I can describe the sound....is it sounds like a boxer motor. The car BARELY moves, it just starts shaking violently and hardly accelerates. Then if I let off to half throttle, it will drive normal.

    It originally started a few weeks ago and it happened exactly when VTEC kicked in at WOT. All of a sudden the car lurched and it hesitated up til I shifted. Same with 2nd gear. In gears 4 and 5, it bogs no matter what at WOT. Again, if I let off to half throttle, it drives normal. But anything over half throttle and it starts bogging and shaking violently. 3rd gear is iffy.

    The weird part is, the symptoms are different each time. Sometimes even when I'm at 1/3 throttle in 1st gear, it will do it. Other times, I have to pop VTEC at WOT in order for it to do it. It's very sporadic and not consistent. Regardless, when it does happen, again, the car shakes violently, barely accelerates, and the engine sounds like a boxer motor.

    Any ideas? My friend said it sounds like a distributor going bad?
     
  2. 00siboy

    00siboy lurkin... Registered VIP

    Joined:
    Sep 3, 2011
    Messages:
    1,754
    Location:
    Indiana
    MAP sensor? I just commented on this on a similar post, it sounds like something that senses load, or reacts when the engine goes under a load. I think a bad dizzy would make it run bad all the time.
     
  3. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    See that's what I said to my friend. But he thinks it's a distributor. I kinda trust him because he's done a ton of work on my car and he went to school to be a tech and was a tech at Acura for a few years. But I dunno.

    It all started when he soldered a new MAP sensor connector because I broke the stock one. I also took the MAP sensor itself off another y8 since the plastic on that end was broken too. Can a MAP sensor get dirty? Should I remove it and spray it with something?
     
  4. 00siboy

    00siboy lurkin... Registered VIP

    Joined:
    Sep 3, 2011
    Messages:
    1,754
    Location:
    Indiana
    You could try MAF sensor cleaner or electrical parts cleaner, it wouldn't hurt.
     
  5. Puma

    Puma Has no filter Registered VIP Registered OG 5+ Year Member

    Joined:
    Sep 28, 2008
    Messages:
    5,435
    Location:
    St. Louis, MO
    When was the last time you tuned it?
     
  6. Hecz

    Hecz New Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

    Joined:
    Aug 10, 2003
    Messages:
    13,645
    Location:
    Chicago, IL - USA
    Yea, Sounds like misfiring caused by a bad distributor, inside the the distributor the Iginition control module probably went bad, Actually OR is going bad. If it completely going bad, you car will not turn on because lack of spark. One time that happen to me, had to tow it home. Another compoenet inside the dizzy the ignition coil. that is if the dizzy is the internal coil type. I can see that causing your problem and that part is replaceable. Honda will tell you the ICm is not replaceble by you, but if you are a good electrician you can do it, lol. In my case i had to buy a new distributor. Coil went out first for me, then fallowed by ICM. Im wondering right now if a bad coil will actually lower life of icm faster. .... interesting.

    Could be plugs? :lol:
     
  7. RonJ

    RonJ Banned

    Joined:
    Oct 20, 2007
    Messages:
    13,101
    Location:
    Houston, TX
    Stock 99 EX? What CEL codes are thrown? If you say none, does the CEL work?
     
  8. civexspeedy

    civexspeedy New Member Registered VIP 5+ Year Member

    Joined:
    Apr 14, 2006
    Messages:
    1,274
    Location:
    MD
    I doubt it's the distributor, it would likely be more consistent and across the power band if something were wrong with it. If the coils bad, it's bad and you just wont get any ignition which then your car won't run. I had a coil go bad on me on the highway at 65mph. CEL flashed for a second and then the car shut off completely and had to pull over fast. Had to tow home and bought a new distributor..

    If this started after messing with the MAP sensor wiring, I'd say start there.
     
  9. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    I'll pick up some electrical connector cleaner after work and give it a shot. Couldn't hurt I guess right?

    I'd have to check my book but as far as ignition goes, off the top of my head:
    - plugs were within the last 15k
    - wires/dizzy cap/rotor are probably more like 20-30k

    I've been meaning to do a tune up but it gets expensive after adding it all up :(. If I can sell my shotgun I'll do another tune-up lol.

    I don't know crap about that stuff. I'd rather get my car taken in to get tested or have someone else test it. I don't have one of those voltage meters or whatever anyways.

    Plugs SHOULD be good but who knows. Car does have a lot of miles....

    Stock except for an aftermarket intake and header. No codes and CEL does work. Comes on while the fuel pump primes and I just had a code a few months ago I cleared.

    I'll try cleaning the MAP sensor after work. If this continues, I'll try to see if I can scrap a used distributor. I know these things are a dime a dozen too and I've seen a few sell on a local board for $20-$40.
     
  10. Jersey8

    Jersey8 B20: Detroit Muscle! Registered VIP Registered OG 5+ Year Member

    Joined:
    Mar 4, 2006
    Messages:
    4,671
    Location:
    MI
    :word:
    awhile back i had an issue similiar to john's and hecz's. sporadic misfiring, stalling, bogging, etc. for like a month lol. it was so bad that it would stall and then i couldnt get it to start. eventually after multiple attempts and some hopes and dreams it would start lol. thought it was the MAP sensor too. changed it out, but still had problems.
    then one day i was driving on the highway and it just finally died, would not start again. had it towed to a shop and it was indeed the distributor.
    i have my money on dizzy
     
  11. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    Damn.... How bad can you throw timing off if you have it turned too much a certain direction? I know you can sort of mess with timing by loosening the bolt and pivoting it forward or backward.
     
  12. CHILD

    CHILD All Day, All JDM Registered VIP Registered OG 5+ Year Member

    Joined:
    Dec 4, 2006
    Messages:
    6,049
    Location:
    in a small room
    you could have a fouled spark plug. sometimes it happens rather quickly. I had that happen to me.
     
  13. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    Spark plugs are cheaper than a dizzy. I'll try spark plugs after cleaning the MAP if that doesn't work.
     
  14. Puma

    Puma Has no filter Registered VIP Registered OG 5+ Year Member

    Joined:
    Sep 28, 2008
    Messages:
    5,435
    Location:
    St. Louis, MO
    I was thinking it's plugs/wires if not the dizzy. I had this similar issue on my old crx. replaced those and it helped, but turned out to be MAP and main relay as well.
     
  15. CHILD

    CHILD All Day, All JDM Registered VIP Registered OG 5+ Year Member

    Joined:
    Dec 4, 2006
    Messages:
    6,049
    Location:
    in a small room
    yeah, my b16a did it to me. The number 2 one was all crusted over and the others looked perfect still. I dont know what caused it either.
     
  16. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    Damn. Spark plug wires are expensive too! Oh well... At my mileage, it probably wouldn't hurt to do a tune-up a little earlier. I'd have to check my books but I'm sure I'm due for one either way.
     
  17. Decipher

    Decipher New Member Registered VIP

    Joined:
    Jul 20, 2011
    Messages:
    1,367
    Location:
    Charlottesville, VA
    TPS? I'm just throwing that out there since you said it depends on how much pedal you're giving it. I know the throttle position sensor is pretty easy to check for proper voltage. Might be worth looking at if you can borrow a meter. From what I understand, the voltage should be .5 volts at closed throttle and 4.5 volts at Wide Open Throttle, with a smooth transition between the two positions... no jumps.

    For some reason, it doesn't sound like a distributor or plug issue to me. But I could be wrong. The ICM or coil would cause trouble under normal driving as well, rather than just under hard acceleration... I would think. But start with the cheap/easy stuff. Checking voltage is free. Replacing expensive ignition components is not.
     
  18. treeafodo

    treeafodo Austin Registered VIP

    Joined:
    Nov 16, 2010
    Messages:
    1,307
    Location:
    Windsor, Ontario
    My bet would be spark plugs. It's worth checking at least. It's cheaper then wires or a dizzy. Lol
     
  19. JohnS.

    JohnS. BANGARANG Staff Member Registered VIP Registered OG 5+ Year Member

    Joined:
    Jan 10, 2006
    Messages:
    19,293
    Location:
    New York
    Should I just take off the TPS and clean it along with the MAP? Or check voltage? Out of curiosity, why would voltage effect the TPS and how does it happen in the first place?
     
  20. Hecz

    Hecz New Member Registered VIP Registered OG 5+ Year Member 10+ Year Member

    Joined:
    Aug 10, 2003
    Messages:
    13,645
    Location:
    Chicago, IL - USA
    spark plug wires are like 20 bucks. No time for that fancy jdm bs. you need regular-ass replacement parts. Do start by diagnosing plugs and wires first. I believe If it was some sensor, you would have a CEL. A bad igintion coil will not trigger a cell.
     


Share This Page