'98 fi losing power when warm?!

Discussion in 'Mechanics Garage' started by stapes, Mar 19, 2012.

  1. stapes

    stapes New Member

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    Hi all. My baby is losing power when it gets warm,after about a mile of running. Almost like its not firing on a cylinder,even though all the headers are hot. I've no clock /fairing etc as i sold them to streetfighter it ( 916 back end looks sweeeeeet!) so i dont have the fi light to check. What a clown i know!Any suggestions for a common fault would be nice. Done the plugs but no joy.:frown: Any common probs i should check?
    Yours desperately...
    Stapes.
     
    stapes, Mar 19, 2012


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  2. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    use a 12v test light on the wire that would have gone to the FI indicator light
     
    tinkerinWstuff, Mar 19, 2012


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  3. reg71

    reg71 Poser Staff Member

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    you mean to count the flashes on the test light and compare to the codes?
     
    reg71, Mar 19, 2012


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  4. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    right on. That's what I meant. 12v test light will serve the same purpose and allow checking for codes stored in the ECU.

    Much simpler than chasing down hunches.
     
    tinkerinWstuff, Mar 19, 2012


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  5. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    Looks to be a white wire with a blue stripe on what would have been the Gray connector that plugged into the back of the gauges.

    use the search function on youtube to find "reading FI codes on Honda VFR"

    [​IMG]
     
    tinkerinWstuff, Mar 19, 2012


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  6. reg71

    reg71 Poser Staff Member

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    that's what I figured but I thought I'd clarify just in case we weren't all on the same page. ;)
     
    reg71, Mar 19, 2012


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  7. squirrelman

    squirrelman Member

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    Bad sensor ?? Gotta love FI, Bunky ! FI saved the riding world from all fueling problems forever.

    Seriously, if it is quitting one one cylinder only, you need to determine which one b4 finding a fix.
     
    Last edited: Mar 19, 2012
    squirrelman, Mar 19, 2012


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  8. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    Likely. But you need to get into the F I light circuit so the computer can tell you where to start looking
     
    tinkerinWstuff, Mar 19, 2012


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  9. stapes

    stapes New Member

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    Ok guys thanks for advice. will keep on searching :wink:
     
    stapes, Mar 22, 2012


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