| Author | Message | 
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 John S. Bleazard (Injun)
 Member
 Username: Injun
 
 Post Number: 61
 Registered: 12-2003
 
 | | Posted on Saturday, March 27, 2004 - 06:09 pm: |       | 
 I ordered a pair of universal o2 sensors that are 4 wire.  The insert has wiring diagrams for various manufacturers, but do not have Land Rover.  The Disco has a black, yellow, white, and black wire.  Does anyone know which one is the heaters, ground, signal?  98 Disco LE 4.0.  Thanks
 
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|       
 John S. Bleazard (Injun)
 Member
 Username: Injun
 
 Post Number: 62
 Registered: 12-2003
 
 | | Posted on Saturday, March 27, 2004 - 09:59 pm: |       | 
 Anyone have a wiring diagram
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|       
 John S. Bleazard (Injun)
 Member
 Username: Injun
 
 Post Number: 63
 Registered: 12-2003
 
 | | Posted on Saturday, March 27, 2004 - 11:53 pm: |       | 
 Well, after about 2 hours of searching the internet I found the following.
 
 Black (ref)= out
 Yellow (ref)= in
 Red Heater = +
 White Heater = -
 
 My interpretation
 Black = ground
 Yellow = Signal to computer
 Red/White = Heater (not polarity independent)
 
 Can anyone confirm this
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|       
 Joey (Joey4420)
 Senior Member
 Username: Joey4420
 
 Post Number: 685
 Registered: 04-2003
 
 | | Posted on Sunday, March 28, 2004 - 03:18 pm: |       | 
 John, I got your email and I am sorry I don't have this info on me right this moment, but I will get it to you now later than Monday Afternoon.  Sorry for any issues that this has caused you.  I sould have gotten and posted that info earlier.
 
 
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 John S. Bleazard (Injun)
 Member
 Username: Injun
 
 Post Number: 64
 Registered: 12-2003
 
 | | Posted on Sunday, March 28, 2004 - 09:30 pm: |       | 
 No problem Joey.  I actually had a much worse problem.  I went with the wiring in my prior post and crawled under the truck to give it a try and the damn sensor was too big.  Hopefully they will exchange them for the correct ones.  I used the 138-318s under their advice.  But, in the meantime Joey, if you can find the wiring that you used for your sensors that would be great.
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 Joey (Joey4420)
 Senior Member
 Username: Joey4420
 
 Post Number: 688
 Registered: 04-2003
 
 | | Posted on Monday, March 29, 2004 - 09:04 am: |       | 
 This is not good John, since I went on their advice for the same Part # that is why I posted them as a source....I hate it when I give out bad info.  I will call Bob First thing today and make sure we get this sorted out.  I have a 8am appt tomorrow with my Mechanic to do a lot of exhaust work and was changing my O2's at the same time.
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 John S. Bleazard (Injun)
 Member
 Username: Injun
 
 Post Number: 65
 Registered: 12-2003
 
 | | Posted on Monday, March 29, 2004 - 09:44 am: |       | 
 Hopefully Bob will exchange these with some that will work or give us a refund.  I made the mistake of cutting my originals before even comparing them.  I had to reattach the wires and reinstall the nonworking sensor.  Im waiting for Bob to email me back with what to do next.
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 Blue (Blue)
 Dweb Lounge Member
 Username: Blue
 
 Post Number: 1433
 Registered: 04-2003
 
 | | Posted on Monday, March 29, 2004 - 02:13 pm: |       | 
 I knew it sounded too good to be true....LOL
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