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Thread: Misfire on rear cylinder on acceleration and idle

  1. 08-13-2015, 04:25 AM #1
    Sschreck91
    Sschreck91 is offline
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    Misfire on rear cylinder on acceleration and idle

    Greetings! New to the forum and I am in search of some in-site. I own A 2003 lightning XB9s. Took it out a few days ago and after about an hour of riding it, it Started Misfiring and felt like it went into "limp" mode. Couldn't rev it past 4k and was bogging out the more throttle I gave it.

    Changed the Spark plugs, wires, and coil and no luck. Ordered the Ecmspy cable and go it communicating then proceeded to reset the TPS. Did that and nothing changed. Checked all the connections, Harness routing, Fan, and fuses.

    No smoke and no codes. Ran diagnostics on Fan, Injectors, and coil all seemed to check out accordingly.

    Any Ideas Would be helpful! Thanks!
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  2. 10-06-2015, 10:30 PM #2
    ocgreenmachine
    ocgreenmachine is offline
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    Curious... What did the rear spark plug look like.


    Last edited by ocgreenmachine; 10-06-2015 at 10:45 PM.
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