Jump to content
The mkiv Supra Owners Club

missfire under boost faulty coil pack


TT Paul
 Share

Recommended Posts

spec

tt jspec

full bpu

400lph pump 12v pump mod (for single) later in yr

stage 1 hks cams

boost controller

afr gauge

stock ecu, injectors

fcd

 

 

fault

 

seems like a miss fire, holds back around 4000rpm and continues, been gradual over a few wks then got worse. alot worse in ttc. not really jerky but you can feel it and the kick with 2nd turbo is not as hard.

boosting fine, afr on WOT sits around 12, new plugs just fitted ngk iridium, no fault codes, checked pipes no leaks i can find, manifold pressure valve i can blow into but won't let me suck air through, idle is fine no missfire so any help with DB coming up thanks. its bugging me as i can't fix it.

Edited by TT Paul (see edit history)
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.