over revving

Discussion in 'General Motoring' started by Guy Smith, Aug 9, 2003.

  1. Guy Smith

    Guy Smith Guest

    Hi, I have a mk3 astra 1.6 16v.
    The other day the engine management light came on. As I pulled over the
    engine cut out. I tried restarting but it didn't want to know. I tried it
    with a bit of throttle and it started but was really lumpy and then cut out
    again. I then left it for a few minutes then tried again and it started and
    ran fine as if nothing had happened, I then drove to my destination which
    was 5 minutes away.

    About an hour later I got back in the car and started it without any
    problems whatsoever, no light, nothing.
    About five minutes into my journey just all of a sudden the revs went up to
    6,000+.
    I pulled over and switched the engine off. I tried restarting the car a few
    times after this after letting it sit for a while only to be faced with the
    same thing, engine revving up to 6,000+.

    I eventually called the AA out who pulled out a code from the ecu which said
    it had a fault with the secondary air pump or something (cant remember
    exactly what it was). He said he didn't know what that was but went and made
    a phone call and came back saying the code was something to do with the
    catalytic converter. He then had a look under the bonnet and found a small
    split about 10mm in the hose between the inlet manifold and the throttle
    body. That was all he found wrong and had no other suggestions as to what
    may be causing the excessive revs. I then had the car towed to a garage that
    a mate of mine runs, which luckily was only about a mile away from where it
    broke down. They have since had a look at the car and replaced the split
    hose, and have found another air hose split and are waiting on that before
    continuing looking at the car.

    I was just wondering if anyone else has had similar problems and if so what
    the hell was wrong with it? Any help in this matter would be extremely well
    received and I would very very grateful.
    Thanks.
    Guy Smith
     
    Guy Smith, Aug 9, 2003
    #1
  2. Guy Smith

    Conor Guest

    You've juast posted the answer. THe airleak probably fooled the ECU
    which then decided to dump more fuel into the engine.

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    ________________________
    Conor Turton

    ICQ:31909763
    ________________________
     
    Conor, Aug 10, 2003
    #2
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