O2 Sensor question
08-14-2019 | 01:37 PM
#11
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Joined: Oct 2013
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From: SF Bay Area
Both the extenders mentioned here have an 1/8” hole for the gas to pass through but makes a pretty effective dam against the water. Some folks here had no luck with them but sometimes the setup is too much for anything to help.
08-14-2019 | 02:17 PM
#12
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From: On A Dirt Floor
08-14-2019 | 02:18 PM
#13
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Joined: Jun 2011
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You might have to play with various washers to clock the intake port into the exhaust stream. It is actually designed to protect from overheat from a turbo application, but works well for errant water that may enter the exhaust.
08-14-2019 | 02:25 PM
#14
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Joined: Jun 2009
Posts: 9,977
Likes: 6,475
From: Chicago
This guy has worked wonders for me.
EVIL ENERGY O2 Oxygen Sensor Bung M18x1.5 Copper https://www.amazon.com/dp/B07G81XZZT..._yjUuDbNF6YSVJ
EVIL ENERGY O2 Oxygen Sensor Bung M18x1.5 Copper https://www.amazon.com/dp/B07G81XZZT..._yjUuDbNF6YSVJ
I tried the Innovate heat sink and felt the readings were not accurate ..but that was when I had leaky headers ..
08-14-2019 | 05:50 PM
#15
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Joined: Jun 2004
Posts: 7,317
Likes: 1,037
From: frankenmuth michigan
This guy has worked wonders for me.
EVIL ENERGY O2 Oxygen Sensor Bung M18x1.5 Copper https://www.amazon.com/dp/B07G81XZZT..._yjUuDbNF6YSVJ
EVIL ENERGY O2 Oxygen Sensor Bung M18x1.5 Copper https://www.amazon.com/dp/B07G81XZZT..._yjUuDbNF6YSVJ
08-14-2019 | 07:43 PM
#16
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Joined: Sep 2009
Posts: 419
Likes: 14
From: Lake Winnipesaukee, NH
The way to keep those sensors alive is to use a cam that won't revert water. Or extend the exhaust way out dry. I gave somebody on here some crap about the extender recently, cuz those 90 degree extenders were invented to fool car ecm's with bad catalytic converters.
But in retrospect I can see how it could succeed in a boat. Boats often run at a steady state so they would have the same reading once the exhaust gas hits the sensor. Cars have constant change in the throttle position, so that's where my attitude came from.
I finally installed my own AEM kit literally yesterday and only ran it for a few minutes on muffs. It did not get wet even though EMI had put my sensor bung in horizontally. When I had them warranty out my riser they did the bung. I hadn't yet seen AEM's instruction to tilt it down at least 10 degrees, and don't mount it vertical. Apparently straight down burns them up and flat can hold moisture.
I'm looking forward to fine adjusting my carb. Then I'll pull off the sensor to save it.
You all that have sensor EFI don't get that choice so you need a solution that will let the sensor live.
But in retrospect I can see how it could succeed in a boat. Boats often run at a steady state so they would have the same reading once the exhaust gas hits the sensor. Cars have constant change in the throttle position, so that's where my attitude came from.
I finally installed my own AEM kit literally yesterday and only ran it for a few minutes on muffs. It did not get wet even though EMI had put my sensor bung in horizontally. When I had them warranty out my riser they did the bung. I hadn't yet seen AEM's instruction to tilt it down at least 10 degrees, and don't mount it vertical. Apparently straight down burns them up and flat can hold moisture.
I'm looking forward to fine adjusting my carb. Then I'll pull off the sensor to save it.
You all that have sensor EFI don't get that choice so you need a solution that will let the sensor live.
Last edited by NHGuy; 08-14-2019 at 07:48 PM.
08-15-2019 | 08:51 AM
#20
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Joined: Jun 2004
Posts: 7,317
Likes: 1,037
From: frankenmuth michigan
The way to keep those sensors alive is to use a cam that won't revert water. Or extend the exhaust way out dry. I gave somebody on here some crap about the extender recently, cuz those 90 degree extenders were invented to fool car ecm's with bad catalytic converters.
But in retrospect I can see how it could succeed in a boat. Boats often run at a steady state so they would have the same reading once the exhaust gas hits the sensor. Cars have constant change in the throttle position, so that's where my attitude came from.
I finally installed my own AEM kit literally yesterday and only ran it for a few minutes on muffs. It did not get wet even though EMI had put my sensor bung in horizontally. When I had them warranty out my riser they did the bung. I hadn't yet seen AEM's instruction to tilt it down at least 10 degrees, and don't mount it vertical. Apparently straight down burns them up and flat can hold moisture.
I'm looking forward to fine adjusting my carb. Then I'll pull off the sensor to save it.
You all that have sensor EFI don't get that choice so you need a solution that will let the sensor live.
But in retrospect I can see how it could succeed in a boat. Boats often run at a steady state so they would have the same reading once the exhaust gas hits the sensor. Cars have constant change in the throttle position, so that's where my attitude came from.
I finally installed my own AEM kit literally yesterday and only ran it for a few minutes on muffs. It did not get wet even though EMI had put my sensor bung in horizontally. When I had them warranty out my riser they did the bung. I hadn't yet seen AEM's instruction to tilt it down at least 10 degrees, and don't mount it vertical. Apparently straight down burns them up and flat can hold moisture.
I'm looking forward to fine adjusting my carb. Then I'll pull off the sensor to save it.
You all that have sensor EFI don't get that choice so you need a solution that will let the sensor live.
