Mikef
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| posted on 23/11/14 at 05:52 PM |
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Wide band AFR sensor position
Evening All.
Just doing a rebuild for next season, I am fitting a Wideband AFR , to help me with the mapping. I can't put the WB sensor where the narrow band
sensor is at the moment. So need to move it downstream, I Have a 4 2 1 system and the nearest I can get it to the head is approx 900mm downstream once
the exhaust goes into the 1 pipe. Next issue is that I can't get it directly verticle on the to side of the pipe, so will have to go in the
side, Iknow some people say the it will suffer from condensation and not do the sensor any good if it is not right in the top , any body had any
experiance of this please.
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MikeRJ
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| posted on 23/11/14 at 06:26 PM |
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Why can't you fit it where the narrow band sensor is? You don't need both, the wideband should have narrowband output to keep ECUs happy
if needed.
In terms of mounting, the closer to vertical the better, but the installation instructions for my AEM wideband say at least 10 degrees up from
horizontal.
[Edited on 23/11/14 by MikeRJ]
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Mikef
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| posted on 23/11/14 at 08:55 PM |
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Thanks for the reply. As I said can't fit it where the narrow band originally was.Have blanked it off, and only using the WB. Mainly concerned
about the distance from the head for the sensor.Not sure how important this is?
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froggy
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| posted on 23/11/14 at 09:13 PM |
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I run aem widebands and put them 800mm min from the exhaust port on turbo engines as they wont tolerate heat like the narrow band can
[IMG]http://i144.photobucket.com/albums/r187/froggy_0[IMG]
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Mikef
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| posted on 24/11/14 at 08:17 AM |
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Thanks. sounds as though 900 would be alright then ? Although no turbo.
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froggy
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| posted on 24/11/14 at 08:29 AM |
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I think you can run a bit closer on n/a engines ,
[IMG]http://i144.photobucket.com/albums/r187/froggy_0[IMG]
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Ben_Copeland
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| posted on 24/11/14 at 11:39 AM |
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You want in after the last collector in the single pipe after the 4-2. As long as the sensor is above the centre line of the exhaust then its fine
Ben
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