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Old 12-17-2017, 03:21 PM   #1
XxScottxXN
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Ngauge PLX wideband setup--- HELP!

Does anyone currently have the Ngauge with the PLX wideband setup? I'm trying to get the equation right for both AFR and Lambda, I would prefer using it in Lambda.

My current equations are .136 with the offset being .68 for lambda. This one seems pretty close!

And 2 with an offset of 10 for AFR

And how would I test it to make sure it's reading correctly??

Any help would be GREATLY appreciated!!

Thank you
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Old 12-18-2017, 02:45 PM   #2
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Widebands really are lambda sensors, that include simple math to covert it to the AFR scale you "commonly" need.

For pure gasoline, it's Lambda * 14.7
For normal e10 gasoline, it's Lamdba * 14.36
(and so on)

So, 1.0 Lambda is always the perfect stoichiometric balance of air to whatever-fuel-you-use.

From what I see in their directions, Lambda min is .68 and max is 1.36. (And .68 * 14.7 = 9.9.96, 1.36 * 14.7 = 19.992).

So, if you leave the sensor in free air for an hour (probably less), it should peg at (in your case) 1.36 lambda (ultra lean)

In the narrow band (something around 14:1 to 15:1), the factory O2 sensors should be close to your wideband, if it's configured correctly).

Are you trying to configure the analog output of the wideband as an input into HP Tuners for data logging?
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Old 12-18-2017, 05:05 PM   #3
XxScottxXN
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Quote:
Originally Posted by granatl View Post
Widebands really are lambda sensors, that include simple math to covert it to the AFR scale you "commonly" need.

For pure gasoline, it's Lambda * 14.7
For normal e10 gasoline, it's Lamdba * 14.36
(and so on)

So, 1.0 Lambda is always the perfect stoichiometric balance of air to whatever-fuel-you-use.

From what I see in their directions, Lambda min is .68 and max is 1.36. (And .68 * 14.7 = 9.9.96, 1.36 * 14.7 = 19.992).

So, if you leave the sensor in free air for an hour (probably less), it should peg at (in your case) 1.36 lambda (ultra lean)

In the narrow band (something around 14:1 to 15:1), the factory O2 sensors should be close to your wideband, if it's configured correctly).

Are you trying to configure the analog output of the wideband as an input into HP Tuners for data logging?

I'm trying to set up my wideband on my new Ngauge to read in lambda.
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