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Wide band o2 sensor location
So I put 2 widebando2 sensors in this location see pictures. And they don’t seem to be working correctly.
I wired them to the blower switch on the dash so I could turn them on before firing the boat and also leave them on for a bit after running the boat. Figured it would help with longevity. so took the boat out and fired it up at idle to start they were reading 12 didn’t think anything of it. Got to going down the water at cruise I was reading 14.6 14.8 they never move they seem to stay there so much that I feel like they are not reading correctly. stayed on the lake last night went to leave this morning and they didn’t read at all. Now that could be my fault I fired the boat before I turned the switch on. So not sure. was hoping someone could help me out. Thanks Jeramy https://cimg9.ibsrv.net/gimg/www.off...818bfd0ba.jpeg https://cimg0.ibsrv.net/gimg/www.off...4a9d265fc.jpeg |
Same place I have mine. I do have O2 extenders.
https://cimg5.ibsrv.net/gimg/www.off...24d268bfa7.jpg |
What O2 set up?
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Originally Posted by liberator221
(Post 4840067)
What O2 set up?
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Is the header inner wall welded to the outer wall similar to this?? https://www.offshoreonly.com/forums/...sor-bungs.html
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I just went through about a year and a half deal with auto meter on this gauge. Talked to their tech department several times.
When gauge goes little over 14 and does not move there has been some sort of voltage fluctuation or interference that disrupted the processor in the gauge and shut it down. I finally ran power for AFR to its own relay and gave it a dedicated 12v supply. Per their instructions I hooked the red power wire and the brown wire together so gauge initiates right away rather than waiting on increased voltage from charging system. Ran ground wire from helm to cylinder head. They did not want it hooked to battery. In the end I found a bad connector for the ground wire at the gauge. Wire would not lock in to the hard shell. One of the techs I talked to said they have seen problems with unit staying in the preheat mode due to weld in bung acting as heat sink in water jacketed manifold preventing O2 sensor from heating up enough to read. My opinion: Auto meter put “marine” on the face of this gauge, said it was for marine application, and didn’t do enough research and testing. They seem to be finaky. |
Originally Posted by liberator221
(Post 4840083)
I just went through about a year and a half deal with auto meter on this gauge. Talked to their tech department several times.
When gauge goes little over 14 and does not move there has been some sort of voltage fluctuation or interference that disrupted the processor in the gauge and shut it down. I finally ran power for AFR to its own relay and gave it a dedicated 12v supply. Per their instructions I hooked the red power wire and the brown wire together so gauge initiates right away rather than waiting on increased voltage from charging system. Ran ground wire from helm to cylinder head. They did not want it hooked to battery. In the end I found a bad connector for the ground wire at the gauge. Wire would not lock in to the hard shell. One of the techs I talked to said they have seen problems with unit staying in the preheat mode due to weld in bung acting as heat sink in water jacketed manifold preventing O2 sensor from heating up enough to read. My opinion: Auto meter put “marine” on the face of this gauge, said it was for marine application, and didn’t do enough research and testing. They seem to be finaky. |
Originally Posted by 87MirageIntruder
(Post 4840106)
I'm fighting my Auto Meter also. It stays in preheat mode. I've hooked the brown and power wire together too. Every once in a while it will function and work, but most of the time it stay is pre heat mode. I've changed out the sensor a few times. Added another ground to the dash. I think these are just not a great product for this application.
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Switch to AEM. 4th year on my setup. No problems. Also uses the Bosch 4.9 sensor vs the older 4.2 the Autometer uses.
https://cimg9.ibsrv.net/gimg/www.off...fb084b6705.jpg |
Originally Posted by liberator221
(Post 4840083)
I just went through about a year and a half deal with auto meter on this gauge. Talked to their tech department several times.
When gauge goes little over 14 and does not move there has been some sort of voltage fluctuation or interference that disrupted the processor in the gauge and shut it down. I finally ran power for AFR to its own relay and gave it a dedicated 12v supply. Per their instructions I hooked the red power wire and the brown wire together so gauge initiates right away rather than waiting on increased voltage from charging system. Ran ground wire from helm to cylinder head. They did not want it hooked to battery. In the end I found a bad connector for the ground wire at the gauge. Wire would not lock in to the hard shell. One of the techs I talked to said they have seen problems with unit staying in the preheat mode due to weld in bung acting as heat sink in water jacketed manifold preventing O2 sensor from heating up enough to read. My opinion: Auto meter put “marine” on the face of this gauge, said it was for marine application, and didn’t do enough research and testing. They seem to be finaky. so does yours actually work now? I did just remember I had some 100LL in my tanks you think that could of had anything to do with it. it’s just wired how the gauges wont |
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