OUR VIDEOS GALLERY MEMBER SPONSORSHIP VENDOR SPONSORSHIP

User Tag List

Results 1 to 5 of 5

Thread: TB42 EFI Dual Fuel problems in fuel

  1. #1
    Beginner
    Join Date
    Jun 2018
    Posts
    4
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    TB42 EFI Dual Fuel problem with petrol

    G’Day friends
    My injected TB42 has problems starting and idling on petrol. It was always starting easier on gas, the previous owner said it would be normal. But since a week I am experiencing heavier issues. To start it I need to crank really long and/or more than a couple of times until it fires. Very often it needs a few cycles to rev up to 900 rpm. After starting the idling rev is very low when the engine is cold. As soon as you turn on the aircon the engine starts to stall, it kind of fights to keep running until it dies after almost a minute. If you would prevent that by manually accelerating you might get one or another knock until the RPM needle passes the 1000rpm point.
    Same way of dying when I go in D or R
    Idling problem is gone when warmed up.
    These Problems occur ONLY ON PETROL.
    It starts and runs perfectly on LPG.

    Information to the car: TB42 EFI with ~ 250k in a ~350k Body
    Ignition wires and spark plugs 5000k old
    Fuel filter 5000k old
    Don’t know whAt other relevant information you need to help me, I will answer as soon as possible.

    Your help will be very much appreciated!
    Cheers Atilla
    Last edited by ati289; 27th July 2018 at 03:48 PM.

  2. # ADS
    Circuit advertisement
    Join Date
    Always
    Posts
    Many

     

  3. #2
    Beginner
    Join Date
    Aug 2019
    Posts
    9
    Thanks
    0
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi there, I am currently experiencing a similar issue with my GQ. It has recently had the LPG isolated and has been running terribly. Cleaning the air flow meter with mass spray and fitting a pod filter helped for a bit but the idle was still pretty rough and often hovered between 200 and 400 rpm. It now turns over with strong spark but will not fire. Have replaced ignition coil with no success. Plugs, leads and distributor cap 6 months old, injectors replaced with reconditioned ones a few months ago and crank angle sensor replaced 4 weeks ago. Did you have any success with yours?

  4. #3
    I am he, fear me the evil twin's Avatar
    Join Date
    Jun 2010
    Location
    W.A. (wandering aust)
    Posts
    6,208
    Thanks
    904
    Thanked 6,640 Times in 3,287 Posts
    Mentioned
    44 Post(s)
    Tagged
    1 Thread(s)
    ... have you adjusted the timing? I always retimed the spark if i was operating on Petrol for any length of time.
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

  5. The Following User Says Thank You to the evil twin For This Useful Post:

    MB (27th October 2019)

  6. #4
    Advanced Arfa Brayne's Avatar
    Join Date
    Jul 2016
    Posts
    99
    Thanks
    37
    Thanked 113 Times in 52 Posts
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Do you have a tank of stale fuel ?
    "Can't" is a dirty 4 letter word.
    Best way to deal with a "Can't" is to chop off the "t" and brew it in boiled water for a few minutes.
    Sip on the "t", and consider what you've got left to work with

  7. The Following User Says Thank You to Arfa Brayne For This Useful Post:

    MB (27th October 2019)

  8. #5
    ......... MB's Avatar
    Join Date
    Nov 2015
    Location
    Yarra Valley
    Posts
    8,614
    Thanks
    22,737
    Thanked 11,244 Times in 4,952 Posts
    Mentioned
    468 Post(s)
    Tagged
    0 Thread(s)
    FWIW: Our TB42 non elecy variant issue was stale fuel also as kindly mentioned above.
    Turned to an orange juice glug and required full carby, pump, line and tank over haul.
    I foolishly thought diluting the tank with 50% fresh 91 after 12months would’ve worked but obvious now my damage was already done in the lines. It may have had some 95 put in there at some stage prior we believe too that is apparently even worse for longevity?



    Sent from my iPhone using Tapatalk

Posting Permissions

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