Results 1 to 5 of 5
  1. #1
    Junior Member
    Join Date
    Oct 2018
    Location
    Hershey, PA
    Age
    59
    Posts
    3

    I'm new here, please be gentle

    Hello All,
    I'm in the final (I hope) stages of a L33 swap into a 2000 Mazda Miata.

    I'm in my 50's and I have been working on my own cars since before I owned one. My Dad didn't love when I worked on his. I had a short stint as a professional mechanic. I'm in the process of learning HPTuners in order to be able to troubleshoot this project.
    Pretty much everything is installed. I working on the final details of the wiring, like speedo and tach. They are evading me so far.
    the biggest challenge I've run into is that it was running, but after working under the dash to get some chassis systems squared away it won't start. The spark is weirdly weak and erratic.
    I have check ground paths and reinforced the engine to body to battery grounds.
    some specifics:
    OEM GM computer using HPTuners. VATTS (sp?) is disabled.
    stock truck coils, stock throttle body and new stock injectors (using LS6 fuel rail) with a Dorman 615-900 intake.
    PCM has been bench tuned to run.
    F-body LS T-56 into a GETRAG 3.42

    I'm baffled. I'm open to any suggestions.
    Thanks
    Attached Thumbnails Attached Thumbnails IMG_1144 (1).jpg  

  2. #2
    Veteran pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    22,146

    Black & Blue
    '02 WS.6 / '07 Suburban

    Check the plug wires -- remove and reinstall each wire. You should hear/feel two (2) distinct "clicks" at the coil pack and one (1) distinct "click" at the plug. I agree that you could have a ground issue -- there are a couple of ground connections on a stock engine/harness that you may simply be missing and that a direct engine to chassis ground connection will not cure.

  3. #3
    She Moderator KahanaReef's Avatar
    Join Date
    Jul 2008
    Location
    So Cal
    Age
    60
    Posts
    15,660

    Arctic White
    2000 Camaro Z28

    Welcome to site!

  4. #4
    Junior Member
    Join Date
    Oct 2018
    Location
    Hershey, PA
    Age
    59
    Posts
    3

    Thanks for the reply

    Quote Originally Posted by pajeff02 View Post
    Check the plug wires -- remove and reinstall each wire. You should hear/feel two (2) distinct "clicks" at the coil pack and one (1) distinct "click" at the plug. I agree that you could have a ground issue -- there are a couple of ground connections on a stock engine/harness that you may simply be missing and that a direct engine to chassis ground connection will not cure.
    Thank you for the information and for the welcome(s) to the group.
    I'll check the plug wires. I haven't deliberately paid attention to that.

    I'll report back if that is the problem. Wouldn't that be simple!

  5. #5
    Junior Member
    Join Date
    Oct 2018
    Location
    Hershey, PA
    Age
    59
    Posts
    3
    Hello All,
    As promised, I wanted to let y’all know how the no-start condition resolved.
    I discovered, when cranking, power was lost to the PCM. Upon further investigation, I found that I had connected the starting signal to a circuit connected to the “run”, not the “start/run” terminal on the ignition switch. One quick wiring change and voila! It stars and runs!

    Later, sadly, nearing completion of dyno tuning, the engine developed a well defined miss, maybe several.
    I took it home and found four (4) broken or bent pushrods.
    I’m in the process of taking the heads off to investigate. I’ll let y’all know what I find and how it resolves.
    I keep telling myself, “Projects are journeys, not destinations.” Right now, that’s not very comforting.



    Sent from my iPhone using Tapatalk Pro

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. y first time...be gentle...
    By Sommer86@6LE in forum Western Members
    Replies: 15
    Last Post: 12-13-2007, 08:17 AM
  2. It's my first time....be gentle
    By Sommer86@6LE in forum Almost Anything Goes
    Replies: 20
    Last Post: 12-08-2007, 05:42 PM
  3. Good Idea/Bad Idea..? be gentle
    By EREBUSS in forum General Help
    Replies: 7
    Last Post: 09-14-2006, 02:45 AM

Tags for this Thread

Bookmarks

Posting Permissions

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