Results 1 to 5 of 5

Thread: S14a misfire under boost

  1. #1
    Guest d9lxw's Avatar
    Join Date
    Sep 2020
    Location
    Stockton-On-Tees
    Posts
    23
    Rides
    0

    S14a misfire under boost

    Hi,
    I’ve just bought a 200sx S14a just over a week ago and over the past few days it’s developed a misfire when you get on boost around 7psi or so. I’ve changed the plugs and cleaned the MAF with electronics cleaner with no apparent affect. Has anyone else had this issue? Or any other pointers? I’m incredibly new to nissans and older cars in general.
    Cheers.

  2. #2
    Guest hooky's Avatar
    Join Date
    Apr 2011
    Location
    melksham
    Posts
    950
    Rides
    0
    Its either a coil pack or the plug gaps need closing up.
    Coil packs are a very common failure.

  3. #3
    Now with 400bhp....
    Join Date
    Aug 2007
    Location
    South west
    Posts
    36,381
    Rides
    1
    Most likely coilpack, had the same symptoms from a loose plug but doubt it’s that if you’ve swapped them.
    1998 Nissan 200sx s14a , 2000 std 5 speed with nismo supercoppermix clutch bn6 Sapphire Blue

  4. #4
    Member
    Join Date
    Sep 2005
    Location
    Northamptonshire
    Posts
    21,396
    Rides
    0
    Don't discount the coil pack harness either. It's old. Very old.

  5. #5
    Guest Drifter's Avatar
    Join Date
    Nov 2003
    Location
    Rural
    Posts
    11,154
    Rides
    0
    Check the coil pack loom earth that goes to the back of the head as well


    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
  •