Re: S70 Check Engine Light

Discussion in 'Volvo S70' started by Mike F, Aug 6, 2003.

  1. Mike F

    Mike F Guest

    Not likely. If the fuel level gets so low that air bubbles get into the
    fuel line, the check engine light can come on, but once the tank has
    been refilled the problem goes away.

    The light was not on when you turned your car off, and came on
    immediately after starting?

    Go to Autozone or similar, they will read your codes and reset them for
    free. Make a note of all codes for reference. If you have a problem it
    will be back.
     
    Mike F, Aug 6, 2003
    #1
  2. Mike F

    Michael Chiu Guest

    The light came on right around when I was about to park my car in the
    parking garage after lunch yesterday. It was on when I went home, and
    it'll likely be on when I go to work in the next 10 minutes.

    I'm going to try to reset it as someone had suggested.

    I'll try autozone later if it comes back on. Thanks for that tip. I
    didn't know anyone would do that for free!

    Mike
     
    Michael Chiu, Aug 6, 2003
    #2
  3. Mike F

    Mike F Guest

    This is equivalent to Volvo's codes 2-3-1 or 2-3-2, long term fuel trim,
    upper limit. This is basically the "vacuum leak" code. While it's
    possible that the low fuel level caused this code, what I would do now
    is look at the vacuum elbow for the PCV system that's on the end of the
    intake manifold behind the power steering pump, and at the other elbows
    under the throttle pulley cover. Follow as many of those line as you
    can looking for breaks or disconnections. If you find a problem,
    repair it, if not, continue driving the car and see if the problem comes
    back.
     
    Mike F, Aug 8, 2003
    #3
  4. Mike F

    Michael Chiu Guest

    Today, as I was driving around, I noticed that the Check Engine light
    wasn't one anymore. It went off somtime today, but I don't really
    remember when. I had the code read a few weeks ago at AutoZone, but I
    didn't ask them to reset it.

    Is it normal for the light to reset once the issue is resolved? I thought
    that a reset was a manual thing and not an automatic thing. If it is not
    supposed to go out on it's own, could this also mean that my dash has a
    bad bulb? Bleh. That would be just another issue =(

    Mike
     
    Michael Chiu, Aug 24, 2003
    #4
  5. Mike F

    Stuart Gray Guest

    Mike F, sorry for butting in, but you continually amaze me with your
    knowledge of these cars, and I am always being amazed by what I think is
    incredible sophistication of the engine management systems.

    Stuart. (with a thick 740)
     
    Stuart Gray, Aug 25, 2003
    #5
  6. Mike F

    Michael Chiu Guest

    Drats .. unfortunately, later that day, the light came back on =(
     
    Michael Chiu, Aug 26, 2003
    #6
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