 O2 sensor placement |
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| Franz_x |
 May 31 2026, 06:05 AM
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#1
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Newbie  Group: Members Posts: 8 Joined: 12-November 22 From: Germany - Munich Member No.: 26,984 Region Association: None  |
Hello from Germany,
my 2056 engine is running with the original camshaft, D-Jetronic, J&E pistons and 123ignition tune+bluetooth. I've increased the fuel pressure to 2.3 bar. I now want to install an AEM X-Series Wideband UEGO AFR Gauge Kit. Where is the best place for the sensor on the original banana exhaust? Looking at the pictures and posts, I would place it on the far right. Does anyone have experience with this? http://www.914world.com/bbs2/index.php?sho...=347120&hl= http://www.914world.com/bbs2/index.php?sho...=196079&hl= Thanks, Franz |
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| emerygt350 |
May 31 2026, 06:24 AM
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#2
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Advanced Member Group: Members Posts: 3,600 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
I put mine on the outer #4 pipe heading into the muffler body. This only gives me #4 signals obviously, but it worked and was easily accessible. I justified it by telling myself getting the average of all cylinders could hide problems just as easily as only seeing #1 cylinder....
My ansa style hits both 3 and 4. I will be interested in hearing how your fuel pressure fix worked out across the various cruising conditions once you get the afr installed. Make sure you post the results. |
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| Ron914 |
May 31 2026, 09:58 AM
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#3
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Senior Member Group: Members Posts: 505 Joined: 19-April 22 From: Huntington Beach,Ca Member No.: 26,487 Region Association: Southern California 
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QUOTE(Franz_x @ May 31 2026, 07:05 AM)  Hello from Germany, my 2056 engine is running with the original camshaft, D-Jetronic, J&E pistons and 123ignition tune+bluetooth. I've increased the fuel pressure to 2.3 bar. I now want to install an AEM X-Series Wideband UEGO AFR Gauge Kit. Where is the best place for the sensor on the original banana exhaust? Looking at the pictures and posts, I would place it on the far right. Does anyone have experience with this? http://www.914world.com/bbs2/index.php?sho...=347120&hl= http://www.914world.com/bbs2/index.php?sho...=196079&hl= Thanks, Franz Hello , I just installed this exact model but I do not have the muffler you have but wherever you install it make sure it is greater than 10 degrees.  |
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| TRP |
May 31 2026, 01:20 PM
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#4
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Member Group: Members Posts: 388 Joined: 2-September 23 From: Morgan Hill, CA Member No.: 27,559 Region Association: None
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I have rhe PE Wideband Bluetooth O2 setup. I installed a bung in the #1 and #3 exhaust header / heat exchanger tubes, about 4" back from the muffler flange. I put the bung at 10 or 2 o'clock so that condensation wouldn't foul the sensor.
  I dunno, looks about right to me. Works well. (IMG:style_emoticons/default/smile.gif) |
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