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  1. #1
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    The Flying Banana's Avatar
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    S70 struggling to pull away , misfire etc

    Got a 97 S70 2.5 20v Auto ...went on hol and came back after a week and rear tyre soft ..so got the compressor on and as it was ticking over it started misfiring...switched off tidied up and then went to have a look ..started fine ..went fine all OK and has been for last week or so but ......

    Yesterday came out , started it and went to pull away and at low revs its struggling ... to the point its going to cut out ..if i tried to floor it it is popping and banging in piston chambers / manifold ..butr if i gradually build up revs tho it will go fine ....the lambda light has also just come on ( obviously the misfire is causing this amongst other things )

    hope its not major as i really like this old thing !

    Any one expreience this before

    FB

  2. #2
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    Shinsplintz 101's Avatar
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    Check for water/dampness in the spark plug chambers or around any of the ignition components. Had similar symptoms on a T5 after it had stood for a bit & the plugs were damp causing misfires. Once dried out it cleared. Changed out the whole ignition system shortly afterwards - plugs, leads, dizzy, rotor & coil. Never had a repeat.

    Lambda will probably being caused by over fueling due to a poor spark.

    HTH, cheers, Morgan
    Last edited by Shinsplintz 101; Tuesday 8th November 2016 at 18:11.

  3. The Following 2 Users Say Thank You to Shinsplintz 101 For This Useful Post:

    LeeT5 (Wednesday 9th November 2016),The Flying Banana (Thursday 10th November 2016)

  4. #3
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    The Flying Banana's Avatar
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    cheers Morgan , done all that , still the same, turned out to be the MAF .... didn't check that as the previous owner had said he had put one on not long before I got it....one of those things it was faulty.........changed now and running sweet again


 

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