my turn for help please- ecotec 2.2 loss of power & jerky acceleration

Discussion in 'General Motoring' started by mikeFNB, Jun 6, 2006.

  1. mikeFNB

    mikeFNB Guest

    this one has me stumped as such.

    as above, seeming to misfire, but no bangs, low power on acceleration, very
    jerky ride.

    done usual ICV,
    plugs [tri-spark now fitted]
    new leads [not done coil pack]
    no ECU faults showing! bugger!!

    sort of co-incided after changing top gasket following it blowing and oil
    filling leads/spark plug area.
    complete new cat/exhaust fitted at same time.
    O2 sensor wires checked also

    thinking down the lines of the EGR valve needs a clean or maybe that tiny
    hole in the butterfly of the throttle body?

    seems also to be using more fuel, but as the price has gone up so much, diff
    to know if the wife is just being paranoid
    or just a case of less petrol to a tenner!

    mostly tesco petrol used
    halfords semi synth oil.

    did get overfiled by about 1ltr as the sump did show empty after gasket blew
    but wasnt!

    any thoughts or pointers please
    mikeFNB, Jun 6, 2006
  2. mikeFNB

    Mike Guest

    o2 sensor not doing its thing?
    heard that it can cause this.

    Mike, Jun 7, 2006
  3. mikeFNB

    mikeFNB Guest

    yep i think that will be cleaned also if poss.
    just done the EGR valve and it's engine block channels & that has inproved
    my next step is going to be attacking the butterfly breather hole in the
    throttle body.
    that seems about the next candidate.
    i'll be looking on the net tomorrow for a guide or two just to brush up on
    what to do. & look for.

    the biggest pig will be its a sintra and its under the dash overhang so to
    speak, space is tight but i think once the airintake is out he way
    it should be easy.
    i'll let you know how i get on.
    but the ERG certain was worth doing.
    the valve was not sticking, but the channels away from it on the block were!
    good dose of WD40 and a poke with its red sleeve soon cleared it through.

    im slightly puzzling if i have overheating in the first 2 cylinders as the
    new spark plug are showing signs of heat damage on the ceramic insulators,
    but no alarming indication on the temp gauge
    all is normal, but its back to pulling on acceleration now , so im getting

    mikeFNB, Jun 7, 2006
  4. mikeFNB

    Mike Guest

    Long shot I know, and I dont know if you want to be bothered, but try
    swapping injectors 1&2 for 3&4. I'm thinking that if theres a (very
    slight)blockage then you might have 1&2 running ever so slighly lean on the
    mix. A bit fancifull I know, but short of a waterway blockage or an air
    bubble its all I've got.

    Mike, Jun 7, 2006
  5. mikeFNB

    airsmoothed Guest

    Maybe if the EGR was not circulating properly to the first 2 cylinders
    this would increase the temperature in these cylinders?
    airsmoothed, Jun 7, 2006
  6. mikeFNB

    adder1969 Guest

    Sounds like something's up with the timing e.g. crank sensor or dizzy
    adder1969, Jun 7, 2006
  7. Haha what a bunch of morons you couldn't fix a kids bike.
    straight talker, Jun 7, 2006
  8. Wow the moron finally decides to change the plugs.
    Does your one brain cell ever get lonely retard?
    straight talker, Jun 7, 2006
  9. mikeFNB

    mikeFNB Guest

    well i thought id try a few stupid things first.
    like another set of plugs........, got a set of NKG's from a local shop.

    after a nwee bit of blowing out, shes running fine,
    good accelerating even in 5th uphill without a hiccup in sight!

    so i think it was just a sad trail of events that caused it
    rocker gasket went
    oil in cylinders
    changed plugs/leads
    EGR vave finally gave up at the same times
    small tube from head to throttle blocked
    change of spark plugs

    my acid test will be if i get the fuel consumption back.

    now, im going to check a certain large retailer sold me the correct
    sparkplug in the first place

    thanks guys

    though if anyone known og a guide on the net for down the throttle etc etc
    i'd like a look at it.
    there are more than 1 thin pipe at the back that must be gummed up or close
    to by now

    mikeFNB, Jun 7, 2006
  10. mikeFNB

    Ono Notim Guest

    * Wow the moron finally decides to change the plugs.
    * Does your one brain cell ever get lonely retard?

    Obviously not first in the queue for manners, politeness or tolerance! - or
    even punctuation!

    Not that I'm perfect - I don't claim to be.

    Everybody has to learn, maybe you'll start someday when you start to mature.

    Cheerio now

    Ono Notim, Jun 8, 2006
  11. mikeFNB

    aussie bongo Guest

    i killfiled straitwan*er ages ago.
    aussie bongo, Jun 8, 2006
  12. mikeFNB

    Chris Guest

    Probably best not to respond to straight talker - that way he might go away
    and make a nuisance of himself in another news group.
    Chris, Jun 8, 2006
  13. mikeFNB

    Dogger Guest

    Ha-ha mouthy Chris finally gets a spine and decides to reply.
    What happend to you ringing my garage then Chris?
    You didn't bother as you knew you would be proved wrong.
    Go back and crawl under your stone coward this room is for real men with
    Dogger, Jun 8, 2006
  14. mikeFNB

    Bepo Guest

    Is shite talker and dogboy the same person. Pathetic. I love to kick
    your ass. Is there anyway we can get rid off this annoying fool..
    Bepo, Jun 9, 2006
  15. mikeFNB

    Mike Guest

    Yes he is. He doesnt even have the brains to mask his IP address. Just
    ignore the trolls.
    Mike, Jun 9, 2006
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