Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 24

Thread: Bosch LSU4.2, NTK UEGO & WBO2 Extension Harness

  1. #11
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,289

    Default

    Quote Originally Posted by Sickfox View Post
    When wiring a Dominator system, which WB02 sensor gets plugged into the main harness? Is it the passenger or drivers side?
    The P1A (HP & Dominator ECU) WBO2 Main Harness is the "Left" sensor.
    The P2A (Dominator ECU only) WBO2 Auxiliary Harness is the "Right" sensor.

    The only definitive aspect is P1A is Left & P2A is Right.
    It doesn't matter which (engine) bank is Left or Right.
    The Left/Right can be whichever bank you interpret it to be.

    http://forums.holley.com/showthread....1537#post71537 (Additional WBO2 Sensor Heating & Status Information)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  2. #12

    Default

    Is there any issue or cautions I should be aware of if I want to shorten the length of the WBO2 harness? I'm going to mount the ECU in the glove box of my Mustang, and the WBO2 sensor will go into the existing bung on the passenger side of the car. So the run isn't long at all, and I don't want to have big loop tucked away somewhere.

  3. #13
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,289

    Default

    Quote Originally Posted by jeff@califon View Post
    Is there any issue or cautions I should be aware of if I want to shorten the length of the WBO2 harness?
    You can modify the length of the WBO2 sensor harness on the ECU side, but don't modify the WBO2 sensor wiring itself.
    Personally, I'd never modify the WBO2 sensor's wiring, or any other sensor with attached wiring.
    If I need to replace that sensor, I want to install it "as is", because it's the wear item (not the main harness).
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  4. #14

    Default

    Hello. Looking for a little guidance. I'm building my own harness and have the proper tools. I just need some insight on the WB leads. Should I be shielding A7, A16, A17, A25, & A33 with the shielding terminating at Pin A8? Thank you, Zac

  5. #15
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,289

    Default

    Quote Originally Posted by zbrown View Post
    Should I be shielding A7, A16, A17, A25, & A33 with the shielding terminating at Pin A8?
    The WBO2 sensor harness has one insulated shield wire (as listed in post #1), and the entire 8-wire harness is a shielded sheathing.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  6. #16

    Default

    Quote Originally Posted by Danny Cabral View Post
    The WBO2 sensor harness has one insulated shield wire (as listed in post #1), and the entire 8-wire harness is a shielded sheathing.
    Wow, thanks for the quick response.
    So just so I'm straight, the sheathing ties into the shielding pin on the ECU (A8) correct?
    This is the part that is confusing me, it must as it stops at the terminal and not carried on to the sensor.
    If you could just clarify, it would be greatly appreciated.

  7. #17
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,289

    Default

    Quote Originally Posted by zbrown View Post
    So just so I'm straight, the sheathing ties into the shielding pin on the ECU (A8) correct?
    The shielded harness sheathing doesn't tie into the insulated shield wire.

    This is the part that is confusing me, it must as it stops at the terminal and not carried on to the sensor.
    The insulated shield wire isn't connected to the WBO2 sensor, but it is connected to the ECU. (The shield wire is always grounded at one end only.)
    http://www.newark.com/pdfs/techartic...haWire/USC.pdf (Shielded Wiring - look for "drain wire" on page 2 & 3.)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  8. #18

    Default

    Quote Originally Posted by Danny Cabral View Post
    The shielded harness sheathing doesn't tie into the insulated shield wire.
    The insulated shield wire isn't connected to the WBO2 sensor, but it is connected to the ECU. (The shield wire is always grounded at one end only.)
    Once again, thanks for the response. See I assumed there was only 7 wires for the harness, and the 8th was the sheath. Zac

  9. #19

    Default

    Quote Originally Posted by Danny Cabral View Post
    You can modify the length of the WBO2 sensor harness on the ECU side, but don't modify the WBO2 sensor wiring itself.
    Personally, I'd never modify the WBO2 sensor's wiring, or any other sensor with attached wiring.
    If I need to replace that sensor, I want to install it "as is", because it's the wear item (not the main harness).
    I understand what you're saying about not modifying the wire length on the sensor for ease a replacement later. My question is, can you shorten the length of the wires on the NTK sensor without affecting the sensor function? I have an Unterminated Main Harness I'm building. It's just that the sensor wires are so long, I'd have to route the connector into the car which is not feasible. And I really don't want to tie the excess up in a bundle. Thanks in advance, Frank.

  10. #20
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    19,289

    Default

    Quote Originally Posted by franktf View Post
    My question is, can you shorten the length of the wires on the NTK sensor without affecting the sensor function?
    You probably can, but it's highly recommended not to. If you decide to do so, proceed at your own risk. Also, the WBO2 sensor warranty will be void.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

Page 2 of 3 FirstFirst 123 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us