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Thread: intermittent harsh misfire A4B5.5 1.8TQ

  1. #1
    Join Date
    Jan 2017
    Location
    hobart
    Posts
    15

    intermittent harsh misfire A4B5.5 1.8TQ

    Hi,
    My A4 has a really harsh misfire under load sometimes, other times it accelerates smoothly.
    Could it be a boost leak, ignition failure, fuel starvation?
    I have scanned it on a obdeleven, no codes.

    Any ideas?

    Swarz

  2. #2
    Join Date
    Jan 2013
    Location
    Brisbane, QLD.
    Posts
    511
    Users Country Flag

    Run measured value blocks for missfire counter cylinder 1, 2, 3, 4 and go from there, find which cylinder logs a missfire..

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