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  1. #1
    Mtuned's Avatar
    Join Date
    Aug 2010
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    Orlando FL
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    724

    RX-DI One cylinder leaner...

    Both plugs always seem to be ok as far as color goes.

    But the mag side is always a little blacker/darker then the pto side.

    I swapped injectors with same symptom. Same compression 125 per cylinder. Runs fine goes 61mph on gps.


    Oem bore. 93 octane gas. Never had a maintance code.

    219 hours, New oem topend at 200 hours.

    Wierd thing is that the piston on pto side gave out when it was time for rebuild, looked leaner then the mag piston..

    So it seems to have been a issue before rebuild?

    Any ideas? Anyone else with a di have same thing?


  2. #2
    kecheme's Avatar
    Join Date
    Jul 2011
    Location
    Phoenix Az
    Posts
    208
    +1
    7
    Maybe an oscilloscope to check the pulse time between injectors.

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