Results 1 to 11 of 11

most confusing!

This is a discussion on most confusing! within the General Help forums, part of the LSx Technical Help Section category; hello. im currently building a tube frame car sporting a 97 vette powerplant, completely standalone, throtle by wire, . brand ...

  1. #1
    Junior Member
    Join Date
    Jan 2008
    Location
    indianapolis
    Posts
    5

    red
    1997

    most confusing!

    hello. im currently building a tube frame car sporting a 97 vette powerplant, completely standalone, throtle by wire, . brand new ECU and custum harness. it will not run on cylenders 5 & 6. fuel, air, and spark are all there. also passed compression and leakdown. any ideas?

  2. #2
    Junior Member
    Join Date
    Jan 2008
    Location
    indianapolis
    Posts
    5

    red
    1997

    oops i meant 4 & 6

  3. #3
    Member
    Join Date
    Sep 2005
    Location
    Orlando, FL
    Posts
    142
    Want a new car

    plug wires swapped around?

  4. #4
    Junior Member
    Join Date
    Jan 2008
    Location
    indianapolis
    Posts
    5

    red
    1997

    iv swapped everything there is to swap. coils, injectors, wires. cant get the misfire to move.

  5. #5
    Member
    Join Date
    Sep 2005
    Location
    Orlando, FL
    Posts
    142
    Want a new car

    I mean do you have the 4 6 pulg wires in the wrong place, switched with each other.

  6. #6
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,520

    98 Formula
    06 duramax

    was the motor tore down prior to installing it? How many miles are on the motor? Seems like a weird situation and the only thing that I can think of right now is maybe bent pushrods or something along those lines? I'd hate to send you on a wild goose chase so don't go tearing the heads apart on my account. That's just the best guess I can come up with at the moment. 2 and 8 aren't showing misfires? Just the middle cylinders? It also sounds like you've covered most of the bases I would have by now so I'm kinda at a loss.

  7. #7
    Senior Member TransAm11973's Avatar
    Join Date
    Nov 2007
    Location
    in my Trans Am
    Posts
    2,630

    Black
    2000 Trans Am WS6

    does this sound like ecm to you guys? i mean if everything that he said is there is, then could it just be the computer f-ing up, or connections??

  8. #8
    Junior Member
    Join Date
    Jan 2008
    Location
    indianapolis
    Posts
    5

    red
    1997

    no 2&8 are doin fine. just the middles. sinse the first post i even went as far as trying a completely different set of coils. nothin! then i borrowed 2 more ECUs and tested it with both. didnt change anything! the engine hasnt been gone through at all, its out of a wrecked car. but we ran it at an event in october with a different modified loom and computer. the driver wrecked it into a wall. and as for the pushrods iv checked them all out on that side. strait as an arrow!

  9. #9
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,520

    98 Formula
    06 duramax

    is the coil harness on that side of the motor a stock harness or did you guys make your own? The thing that gets me is you say you're getting spark and fuel so that makes me think that everything from the pcm to the plug is fine and that it's mechanical.

  10. #10
    Junior Member
    Join Date
    Jan 2008
    Location
    indianapolis
    Posts
    5

    red
    1997

    the coil harness is original, but i went ahead and back probed it anyway, everything was fine. i think im just gonna put it away for a while!

  11. #11
    Veteran 0rion's Avatar
    Join Date
    Aug 2005
    Location
    ohio
    Posts
    22,520

    98 Formula
    06 duramax

    make sure you check stupid stuff too while you're at it. Make sure the plugs are ok and the ceramic isn't cracked or something stupid like that. Also go over the wires really good to make sure they're not cracked or something stupid. I know you said you checked everything, just trying to give some ideas. Most of the time in my experience it ends up being something really stupid that you've checked 10 times already.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. confusing headlight motor issue
    By 00bandit in forum General Help
    Replies: 4
    Last Post: 07-26-2012, 03:28 PM
  2. Confusing DTV Twist Will Cost Millions for Consume
    By Vexzer in forum Political / Debate Forum
    Replies: 12
    Last Post: 02-08-2009, 10:16 AM
  3. Kinda confusing...
    By JwMonE99 in forum Almost Anything Goes
    Replies: 5
    Last Post: 12-22-2007, 03:03 PM
  4. Confusing Ex Girlfriend
    By Toadman in forum Almost Anything Goes
    Replies: 72
    Last Post: 04-20-2006, 12:33 PM

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
  •