W/B 02 sensors
#1
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W/B 02 sensors
I have been using W/B 02 sensors on my fuel inj Camaro for many years, but didn't think it was possible on a marine eng since water is mixed with exhaust. I just stumbled across this site and I see you guys are doing it. How do you sample the exh without getting water on the sensor??
Has anyone adapted an automotive ECM for marine use?
Has anyone adapted an automotive ECM for marine use?
#2
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You have to run dry pipes ... dumping the water @ the tip .
I have run air / fuel sensors for years without any problems . AEM is the brand I use and had to make a 20 ' harness from the sensor to the gauge. Mount the sensor @ 10 , 12 or 2 o'clock on the pipe . You have to fabricate a tail pipe with an o2 bung welded in .
I have run air / fuel sensors for years without any problems . AEM is the brand I use and had to make a 20 ' harness from the sensor to the gauge. Mount the sensor @ 10 , 12 or 2 o'clock on the pipe . You have to fabricate a tail pipe with an o2 bung welded in .
#4
21 and 42 footers
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I ran an O2 sensor in the exhaust right before the water mixed in the header. I only ran it when I was doing occasional test or after re-tuning. Don't remember the brand but it was an entire kit (I've since sold the boat)
#5
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Were either of you monitoring the exh on an I/O? Seems like the eng compartment would get really hot, really quick, especially at WOT.
#6
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I have the AEM sensors in my CMI's They are right where the tails connect to headers where it is dry. 3 yrs, no issues so far.
Smitty
Smitty
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Want your ECU tuned right?? Call Mark at Precision www.pmefi.com
#7
I have been using W/B 02 sensors on my fuel inj Camaro for many years, but didn't think it was possible on a marine eng since water is mixed with exhaust. I just stumbled across this site and I see you guys are doing it. How do you sample the exh without getting water on the sensor??
Has anyone adapted an automotive ECM for marine use?
Has anyone adapted an automotive ECM for marine use?
The spacer has a spot for the sensor to thread into keeping it in the dry section prior to where the water dumps in. The spacer has holes for coolant to pass through from the manifold and into the riser.
I've been using an Innovate wide-band O2 for several years. It works great. It was instrumental and necessary for EFI tuning.
Here's one example. No I'm not affiliated. In fact I didn't use this brand. Mine was a WAGs engineering piece.
http://www.ebay.com/itm/OXYGEN-SENSO...s_Gear&vxp=mtr
Last edited by Trash; 02-06-2013 at 10:59 AM.
#8
Short answer is the engine compartment gets warm but not hot.
#9
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When I ordered my new IMCO Powerflow manifolds, I had them weld the bungs into the risers. I used an Innovate wide-band O2 sensor to check and test A/F, and yes I did connect the I/O to my laptop to capture the data. Most manufacturers will weld the bungs in, if requested for an additional charge.
#10
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On My Donzi I made a spacer between the riser and the manifold.
On my Magnum they are installed on the tailpipes before the water is injected.
Both boats run a GM 7730 Speed Density ECM.
Jeff
On my Magnum they are installed on the tailpipes before the water is injected.
Both boats run a GM 7730 Speed Density ECM.
Jeff