Results 1 to 4 of 4
  1. #1
    Pacer's Avatar
    Join Date
    Jan 2006
    Location
    Patterson La
    Posts
    487
    +1
    86

    2015 GTI LTD high idle problem

    I put a rebuilt motor in a 2015 GTI LTD 155. It cranks and runs, but it idles between 3,000 and 4,000 rpms? I got the boat after it had been taken apart and sat with water in the hull for over a year.

    It had a corroded main harness ECU plug, so I replaced it with a 2016 main harness. The IBR plug is different, so I spliced in the 2015 IBR plug to the 2016 harness. The wires are all the same, and the IBR is working, so I don't know if the IBR spliced connection could be related to the high idle problem or not.

    It is throwing a C0042 code, which my candoo says is "Fake not used, but was reserved for Gear Information", but it also read initially as "brake lever sensor shorted" Or something like that. I replaced both the throttle sensor and IBR sensor with working units, and nothing changed. I reset the Throttle with the Candoo, and tried a new throttle body with no change.

    Any idea what could be causing it to idle so high? I haven't put it in the water, I've only ran it on the trailer so far, but it still shouldn't idle so high.


    Thanks

  2. #2

    Join Date
    Dec 2013
    Location
    Greece
    Posts
    205
    +1
    23
    Maybe you have corroded ecu pins.

  3. #3
    Pacer's Avatar
    Join Date
    Jan 2006
    Location
    Patterson La
    Posts
    487
    +1
    86
    Quote Originally Posted by OP. LOCK View Post
    Maybe you have corroded ecu pins.
    The ECU isn't corroded. The ECU plug was in the bottom of the hull in water, but the ECU is OK. It was in a separate box.

    Thanks

  4. #4
    Pacer's Avatar
    Join Date
    Jan 2006
    Location
    Patterson La
    Posts
    487
    +1
    86
    It doesn't idle high every time I start it. It seems like the throttle is sticking, but that should make it throw a code if that was happening??


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. High Idle problem on 2001 Polaris Virage TXi,
    By awesome1 in forum Polaris Open Discussion
    Replies: 8
    Last Post: 11-06-2015, 09:46 AM
  2. Problem with high idle
    By dellen10 in forum Polaris Open Discussion
    Replies: 0
    Last Post: 06-28-2014, 06:57 PM
  3. stx15f high idle problem
    By dant in forum Kawasaki PWC Performance (4-stroke)
    Replies: 10
    Last Post: 06-20-2013, 06:17 PM
  4. high idle problem
    By ironmike17 in forum Kawasaki PWC Performance (4-stroke)
    Replies: 3
    Last Post: 06-20-2013, 10:54 AM
  5. High Idle Problem - 1993 Kawasaki 750 SS
    By robeknight in forum Kawasaki PWC Performance (2-stroke)
    Replies: 4
    Last Post: 10-12-2012, 10:01 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •