Results 1 to 10 of 10

Thread: Wideband Question

  1. #1
    New Member
    Join Date
    Sep 2008
    Posts
    1

    Default Wideband Question

    Hello,

    I have a 1999 Chevy 2500 with a 6.0 vortec. It has true dual exhaust, does this mean I will need two wideband O2 sensors?

    Thank you,

    -Tyler

  2. #2
    EFILive Reseller kbracing96's Avatar
    Join Date
    Sep 2005
    Posts
    584

    Default

    No, the reading from one bank will be fine and the two should be pretty much the same unless you have some kind of mechanical problem. You can't adjust the banks individual anyway.
    01 ECSB 1/2 ton 4x4 Forged 5.7 LS1 GMC

    Custom KBracing front mounted, BW S480, intercooled turbo


  3. #3
    Lifetime Member Bruce Melton's Avatar
    Join Date
    Oct 2003
    Posts
    674

    Default

    You might want to tune to the "odd side" (driver's) as if there is a lean problem # 7 is the most vulnerable.

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

  4. #4
    Senior Member Sid447's Avatar
    Join Date
    Jul 2005
    Posts
    178

    Default

    Quote Originally Posted by Bruce Melton View Post
    You might want to tune to the "odd side" (driver's) as if there is a lean problem # 7 is the most vulnerable.

    I'll second that statement!
    I had detonation in #7 hole and all the others were perfect.
    (Fitted the older -pre 2001 4-point cylinder head coolant vent pipe to help alleviate this exact problem.

  5. #5
    Member
    Join Date
    Dec 2007
    Posts
    61

    Default

    Quote Originally Posted by Sid447 View Post
    Fitted the older -pre 2001 4-point cylinder head coolant vent pipe to help alleviate this exact problem.
    is there somewhere i can find more info on this? -CoryF
    2001 Camaro SS #2070
    -K&N FIPK, P/P TB, 227/231 .614/.617 111+4, UD Pulley, LT headers, OFY, Dumped 3" Exhaust, !AIR, KONI 4/4, Spec 3+ w/ Aluminum Fly Wheel, 4.10's, Custom EFILive Tune

  6. #6
    Senior Member Sid447's Avatar
    Join Date
    Jul 2005
    Posts
    178

    Default

    Quote Originally Posted by CoryF View Post
    is there somewhere i can find more info on this? -CoryF
    Okay,
    info about this can be found in the book "How To Build High-Performance Chevy LS1/LS6 V8's."
    by Will Handzell (Design Release Engineer for GM, then Program Manager for GMPP from 2003).
    Book is from SA Design ISBN 1-884089-84-4 (www.cartechbooks.com)

    ......In the section Production Parts for Performance on page 49.
    It has a Tip:
    quote......." Some road racers have been using the pre-LS6 steam tubes underneath the LS6 intake to improve cooling in cylinder number 7 (they previously had detonation problems in that hole). While the steam tubes weren't used on the factory LS6's, they will fit under the intake by slightly grinding down some of the stiffening ribs on the bottom side."..........unquote.

    Description:- PIPE BLEEDER
    GM PN:- 12562169

  7. #7
    Member
    Join Date
    Dec 2007
    Posts
    61

    Thumbs up

    Awesome!

    I've actually got that book but have never had a chance to read through the entire thing. Maybe I should find some time. I bought it when I first got my Camaro, might turn out to be more useful then I thought.

    Thank You,
    -CoryF
    Last edited by CoryF; November 11th, 2008 at 05:02 AM.
    2001 Camaro SS #2070
    -K&N FIPK, P/P TB, 227/231 .614/.617 111+4, UD Pulley, LT headers, OFY, Dumped 3" Exhaust, !AIR, KONI 4/4, Spec 3+ w/ Aluminum Fly Wheel, 4.10's, Custom EFILive Tune

  8. #8
    Lifetime Member Bruce Melton's Avatar
    Join Date
    Oct 2003
    Posts
    674

    Default

    Think there is a lean AFR thing going on with #7 also.

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

  9. #9
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
    Posts
    28,403

    Default

    Why does this happen to #7...?

  10. #10
    Lifetime Member Bruce Melton's Avatar
    Join Date
    Oct 2003
    Posts
    674

    Default

    Quote Originally Posted by joecar View Post
    Why does this happen to #7...?
    Wish I knew. Most of the busted engines we see seem to have hot piston- brittle ring lands or worse. The fuel rail- near side dead end- is a theory on #7.

    The temp issue back there is easier to understand due to last in line for cooling. There can be air pockets back there as mentioned above.

    Anyway, there seem to be two problems (related?) cooling and leanness converging on poor ole #7.

    2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
    PowrMax Performance

    100 mm PowrMAF

    LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals

Similar Threads

  1. Wideband connection question
    By LS1FREEK in forum FlashScan V2
    Replies: 4
    Last Post: April 11th, 2010, 10:30 AM
  2. New to efi live / wideband question
    By Toby Van Horn in forum Gen III V8 Specific
    Replies: 1
    Last Post: November 22nd, 2009, 08:06 AM
  3. PLX wideband compatibility question
    By robz in forum General
    Replies: 1
    Last Post: August 4th, 2008, 09:54 AM
  4. Wideband question
    By NewV in forum Gen III V8 Specific
    Replies: 5
    Last Post: December 9th, 2006, 11:06 PM
  5. Replies: 13
    Last Post: May 17th, 2006, 02:59 AM

Posting Permissions

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