izmir escort

antalya escort

izmir escort

porno

porno izle

bursa escort

escort

mobil porno

havalandirma sistemleri

antalya escort

beylikdüzü escort

takipçi satın alma

instagram beğeni hilesi

instagram takipçi hilesi

saha betonu

izmir escort

eskisehir escort bayan

porno yabanci

takipçi al

beğeni al

takipçi satın al

beğeni satın al

takipçi satın al

takipçi satın al

izmir eskort

sex hikaye

takipçi satın al

takipçi satın al

ifşa türk

adana bayan escort

ümraniye escort

mudanya escort

şaşmaz escort

tunceli escort

bayan escort

instagram satın al takipçi

instagram satın alma takipçi

Smm panel dünyanın en ucuz sistemi

tiktok takipçi satın al

izmit escort

istanbul escort

escort

porno video

porno izle

1.4L turbo long term fuel trim issue
500 Madness
   
  
Results 1 to 4 of 4

Thread: 1.4L turbo long term fuel trim issue

  1. #1
    Junior Member
    Join Date
    Jan 2023
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Question 1.4L turbo long term fuel trim issue

    i know this is technically not a fiat, but it shares the same engine so i was hoping i might find someone that can point me in the right direction as to what to look for. i have tried on the renegade forum and nobody there has any clue about anything mechanical with this engine, so thats why im here on this forum searching for help. i have a 2015 jeep renegade with the 1.4l turbo multiair engine and the long term fuel trims at idle and part throttle are in the negatives. when i got home tonight, the LTFT showed around -22 and when part throttle its around -8 or so. when it was working normally, it used to stay around -3 or so everywhere. this is the list of mods i have done to it: forge waste gate actuator, forge vacuum actuated blow off valve, Tork Motorsports stage 2 tune, Tork Motorsports multiair springs, mpx underdrive pulley kit, mpx bored throttle body.

    i cant for the life of me figure out why it wants to run so rich! the plugs are black around the ring and its even across all the plugs, so i dont think its a single injector causing it. i have ran multiple fuel treatments through it thinking maybe just dirty injectors leaking by, but it has not changed. i have also changed the down stream o2 sensor with no change. any help with trying to pinpoint the issue would be greatly appreciated.

  2. #2
    Amministratore Fiat500USA's Avatar
    Join Date
    Feb 2011
    Location
    New York
    Posts
    14,564
    Thanks
    9,141
    Thanked 7,548 Times in 4,538 Posts
    I moved this to more appropriate forum to get an answer.
    Enjoy the Forum? Tell a Friend and Please Whitelist us on your Ad Blocker. Thx!

    #modifiedabarth modifiedabarths.com

    abarth500forum.com fiat124spiderforum.com fiat500lusaforum.com fiat500xforum.com

  3. #3
    Lifetime Member Lifetime Member
    Join Date
    Jul 2014
    Posts
    1,354
    Thanks
    588
    Thanked 347 Times in 273 Posts
    You’re well within normal specs.


    2015 Fiat 500 Abarth
    Power:ATM Fender Intake, Forge BOV, ATM FMIC, Tork AutoX Tune, Tork CC Catless DP, Turbosmart WGA, Ragazzon Twin Muffler Cat Back
    Handling: H&R 5mm spacers, El Gato Front Braces, Tork Collars, DoverLabs Coilovers, CPR lower brace, DNA Rear Sway Bar
    Misc: Schrothe QuickFit Harness, OBDLink MX+, Race Tires: 205/45/16 Falken RT660, Street/Drag: 205/45/16 Conti ECS, HAWK HPS5.0
    DSP/D-class (local club classing)
    #notscare

  4. #4
    Moderato map's Avatar
    Join Date
    Dec 2018
    Location
    Eugene
    Posts
    3,443
    Thanks
    1,241
    Thanked 1,233 Times in 1,019 Posts
    I'd start by looking at LT and ST fuel trim combined. Your LT in a non-mod'd engine should remain around +/- 5% with STFT jumping up/down with fuel demands. Yep, mods can change the trim values and negative values means your system thinks it's too rich. (I'm not familiar with Tork tunes, but I'd give them a call to check if they mod the LTFT value.)

    Outside of owner mods, other causes on cars that can cause a negative LTFT is a faulty O2 sensor, excess fuel pressure or leaky injectors, exhaust leak, low compression, or intermittent misfire (plugs, coils and such)... anything that causes some fuel to not be burned. The risk is the system is leaning way down to compensate (maybe) one cylinder misfiring.
    Last edited by map; 01-21-2023 at 05:16 AM.

Similar Threads

  1. Long Term Storage?
    By royceda in forum Fiat 500E Charging and Concerns
    Replies: 3
    Last Post: 01-04-2022, 07:41 PM
  2. Serious long term reliabilty concerns
    By hymerbeliever in forum Fiat 500 Issues and concerns
    Replies: 11
    Last Post: 04-21-2017, 08:04 PM
  3. Getting worried about long term cost of car.
    By mawil1013 in forum Fiat 500 Issues and concerns
    Replies: 23
    Last Post: 08-01-2015, 08:40 PM
  4. Abarth as a long term daily driver?
    By phade in forum Fiat 500 ABARTH General Discussion
    Replies: 40
    Last Post: 01-19-2014, 09:29 AM
  5. Positive Long Term Test from Europe
    By diamondstarhalo in forum Fiat 500 ABARTH General Discussion
    Replies: 9
    Last Post: 06-30-2013, 01:24 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
  •