 Wide band, Where to install lambda sensor |
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| DavidSweden |
 Aug 18 2021, 12:52 PM
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#1
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Member  Group: Members Posts: 479 Joined: 8-June 14 From: Sweden Member No.: 17,452 Region Association: Scandinavia  |
I have invested in a wide band AFR, after reading at a lot of threads about where to locate the lambda sensor I am none the wiser. I have a standard 2.0 exhaust system with a banana silencer.
Some say to install the sensor in one of the exaust pipes (before the silencer) and others say install in the silencer. Can anyone give me some advice? |
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| Montreal914 |
Aug 18 2021, 09:38 PM
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Senior Member Group: Members Posts: 1,572 Joined: 8-August 10 From: Claremont, CA Member No.: 12,023 Region Association: Southern California 
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A few years back when rebuilding my engine to a 2056, I installed it on the tail pipe per installation recommendations (at angle, pointing down). Since I didn't know how the interior of the muffler was actually built, I figured, this is not the best but I am catching all of the cylinders.
 I got this kit: https://www.summitracing.com/parts/avm-30-4110  |
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| Frank S |
Aug 19 2021, 10:33 AM
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#3
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Member Group: Members Posts: 135 Joined: 15-April 15 From: Wiesbaden, Germany Member No.: 18,632 Region Association: Germany
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QUOTE(Montreal914 @ Aug 19 2021, 05:38 AM)  A few years back when rebuilding my engine to a 2056, I installed it on the tail pipe per installation recommendations (at angle, pointing down). Since I didn't know how the interior of the muffler was actually built, I figured, this is not the best but I am catching all of the cylinders. I got this kit: https://www.summitracing.com/parts/avm-30-4110 I experimented a bid with different setups. Had two sensors mounted on a Mittelmotor Exhaust, which is close to the original design. I had mounted a sensor at the passender side and one sensor in the middle of the exhaust. With the one on the passengerside you can only moitor cyl 3 and cyl 4. Even if you unplug an injector at cyl 1 or cyl 2 you hardly recognise a diffrence in the reading. The one in the middle position is still more sensitive for cyl 3 and cyl 4 but you will clearly see a diffrence in the reading if something is really of at cyl 1 and cyl 2. Middle is also still responsive enough to run closed loop with MS. I have also ried the Vintage Speed exhaust with the original bung position and clearly see O2 mixed in at lower RPM/Load. From that experience I would say the sensorposition in the pic above will probably not provide good results in the low RPM/Load range and it is probably also to cold for propper sensor operation and will potentially reduce the lifetime of the sensor. So, if you use the O2 Sensor to observe if something is going wrong with you injectors, I would choose the a position in the middle of the exhaust... |
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Posts in this topic
DavidSweden Wide band Aug 18 2021, 12:52 PM
ClayPerrine For best results, you would want it in a location ... Aug 18 2021, 01:02 PM Chris914n6 muffler/tailpipe. You want to read all 4 cylinders... Aug 18 2021, 05:23 PM Gatornapper May I ask whose AFR you bought and what it cost? ... Aug 18 2021, 07:11 PM
930cabman
A few years back when rebuilding my engine to a 2... Aug 19 2021, 05:58 AM
Montreal914
Do you have a sense of the accuracy of this loca... Aug 19 2021, 08:19 AM rbzymek Here is where I installed the bung on my Dansk ban... Aug 19 2021, 12:05 PM |
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