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  1. #1
    Join Date
    May 2020
    Location
    Durham
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    Misfire and unknown electrical issue

    Hi all,

    My Silvia has recently developed a strange problem.

    It misfires and runs on 2/3 cylinders all the time its running, except when the key is turned to the off position or removed, it will then run normally for about 3 or 4 seconds before dying.

    I have checked that im getting spark on all 4 cylinders, and that im also getting fuel.

    Anyone had a similar issue, or has any ideas that can point me into the right direction diagnosing this?

    Thanks in advance.

  2. #2
    Join Date
    Sep 2015
    Location
    west midlands
    Posts
    231
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    37
    Misfire and unknown electrical issue
    @lewis_concannon
    seems like a weird overrun! is it mapped, stock ecu or aftermarket etc? cause it could be the timing is off or the ecu has issues

  3. #3
    Join Date
    May 2020
    Location
    Durham
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    Stock, with a horsham stage 1a chip.
    Might source a stock one and try it in.

  4. #4
    Join Date
    Nov 2013
    Location
    Essex
    Posts
    372
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    12
    is the Hdev 1a actually for an S15? or is it a 14/14a Rom?

  5. #5
    Join Date
    May 2020
    Location
    Durham
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    Quote Originally Posted by hugh janus View Post
    is the Hdev 1a actually for an S15? or is it a 14/14a Rom?
    its a spec s s15 with an s14a sr20det in it.

  6. #6
    Join Date
    Nov 2013
    Location
    Essex
    Posts
    372
    Liked
    12
    who made your conversion loom? or did you re-pin?

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