The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

  • Update Your Password Today!

    We have implemented tools to identify member accounts using insecure passwords and will be locking those accounts until their passwords are updated. Don't get locked out of your account - update your password today, and ensure your account has a valid email address on file. Read more here...
Please Support Morrison Fabrications
Please Support STM Tuned

General Car bucks going into boost

Joshrojas98

Probationary Member
5
1
Jul 28, 2022
Omaha, Nebraska
For some reason my 6 bolt is bucking when I’m getting into boost and during pulls but not getting knock code..
6 bolt 1220CC injectors Garrett T28 turbo
Problem seems to be somewhat inconsistent.. is it a tune spark plugs ? Fuel ? Help
 

Malcalmstunt

Proven Member
64
11
Aug 26, 2015
Sugar Land, Texas
If this issue has not been corrected, try out a different PTU. I have a 90 and tried a second PTU and rewired everything FAIL. Changed my battery, and upgraded my alternator FAIL. Wired in the prius coils and it fixed my issue!
 

95_gsx_2g

Supporting VIP
169
41
Apr 26, 2010
washington, Pennsylvania
For some reason my 6 bolt is bucking when I’m getting into boost and during pulls but not getting knock code..
6 bolt 1220CC injectors Garrett T28 turbo
Problem seems to be somewhat inconsistent.. is it a tune spark plugs ? Fuel ?

With what you got going on id inspect each plug wire especially for any tears or rips. Then id check the plugs see if they look healthy. Ive never really had to change gap or even check it even though that can't hurt. My plugs are always in great shape (good color no debris carbon build up burning etc.) If its your power trasistor unit or coils I'd suspect it to constantly misfire or not start at all.
 

dwb

Proven Member
359
191
Sep 9, 2021
Broomfield, Colorado
Boost leak test
New plugs/wires
Compression test

Mine did kind of the same thing but more on the top end. I had crummy compression and it went away after a bottom-end rebuild.
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Top