Usual no fuel pump woes

Discussion in 'Maintenance' started by Wes, Sep 16, 2023.

  1. Broadie

    Broadie Active Member

    Joined:
    May 26, 2020
    Messages:
    500
    Likes Received:
    65
    I'll try and compare what mine does but I've a sc59 so may behave differently.
     
  2. Broadie

    Broadie Active Member

    Joined:
    May 26, 2020
    Messages:
    500
    Likes Received:
    65
    Have you got an aftermarket alarm/ immobilizer fitted?
     
  3. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    No aftermarket alarm etc.
    No voltage at all to supply to tank. Nothing. No 2 second spike. Cables proved to ground and to relay from tank connections. Tank primes when fed directly from battery.
     
  4. Barstewardsquad

    Barstewardsquad God Like

    Joined:
    Feb 27, 2012
    Messages:
    8,310
    Likes Received:
    3,609
    Total shot in the dark here. Make up a test lamp with a 20w bulb and use that to test the voltages.

    Logic is that many years ago I was fault finding a problem where all the voltages looked good on my brand new all singing and dancing fluke digital multimeter. Despite that nothing worked! Talking to my boss he told me to test with the old AVO 7 analogue meter we had. Lo and behold I found a missing supply that the DVM insisted was there and correct. The supposition we came to was that the DVM didn't draw a lot of current, and the system could deliver the required voltage but only with a few milliamps.

    The 20w bulb will draw just under 2 amps so would be a reasonable load without blowing fuses.
     
    • Agree Agree x 2
    • Like Like x 1
    • Useful Useful x 1
  5. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    Very good point. I actually put a new battery in my meter last weekend just to eliminate any potential misreading but your suggestion sounds good to me. I could rig something up and a break from the bike will do me good.
    Thank you for helping out.
     
  6. Boothman

    Boothman Elite Member

    Joined:
    Aug 15, 2018
    Messages:
    2,994
    Likes Received:
    1,420
    Any hallelujah moments yet @Wes
     
  7. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    Unfortunately not. I’ve been snowed under with other commitments and have had to leave the bike alone in order to keep everyone happy.
    I did manage a little fettle though. Being concerned with my hiss system being the culprit I did source a replacement antenna and even that went wrong lol….. the plug is the wrong orientation regarding male/ female and as I considered how that had managed to happen ( my fault entirely obviously) and considering splicing it in I just realised that at this moment I’m not thinking clearly and together with things not generally going in my favour, I just walked away.
    Now that I’m in the clear for a while I will be back up the garage of an evening trying to get to the bottom of this. It does help that I’m usually putting her away for the winter about now and I tend to have something in bits up there anyway, at least I keep telling myself that !
    Cheers
     
    • Friendly Friendly x 1
  8. Boothman

    Boothman Elite Member

    Joined:
    Aug 15, 2018
    Messages:
    2,994
    Likes Received:
    1,420
    Did you get yours sorted @Wes?
     
  9. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    Cheers for asking Boothman… (and everyone who also came along to help me out) yes she’s recently had a test ride and everything seems to be as it should.
    It was the yellow multi pin connector on the rhs behind the mid section fairing. Oh so simple, or not in my case.
    This block was a constant point of checking as I ran through things and I used its readings to verify or become part of testing every bloody thing.
    There was my downfall. The block was difficult to probe as the pins are insulated. My solution was to insert a pin into one of the connections so I could just put my meter probe to the pin without struggling to hold the block at the same time.
    Unfortunately for me, internally the common link had failed. A broken wire. Unawares, I used this as a reference for everything. Painful lesson learnt.
    I really went down the rabbit hole with this one and if maybe I’d tried a different pin out to run my tests from things would have been different but hey ho that’s life. An ECU, calls back and fore to them, posting here for much needed help, it’s all a journey.
    Thanks to all. Genuinely, thank you all for every bit of help and advice you’ve passed my way. Really appreciated.
    Btw…after finding the fault I installed my original ECU and it obviously worked. I didn’t tell the Mrs that part !
     
    • Like Like x 1
    • Funny Funny x 1
  10. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
  11. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    IMG_1473.jpeg
     
    • Like Like x 2
  12. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    Lol
     
  13. Wes

    Wes Active Member

    Joined:
    Dec 17, 2019
    Messages:
    215
    Likes Received:
    122
    Should of found issue earlier lol
     
  14. Boothman

    Boothman Elite Member

    Joined:
    Aug 15, 2018
    Messages:
    2,994
    Likes Received:
    1,420
    10 out of 10 for perseverance - glad its sorted mate :)
     

Share This Page