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#43: 04-24-2012, 09:23 AM
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Title: 5EAT 101
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Originally Posted by WRteXan View Post
Without calling them, their website says 10:1 to 20:1. So assuming 10:1 is 0V and 20:1 is 5V, then the formula is AFR = (2)*(TGV Voltage)+(10). If you need an excel formula, and we assume that TGV 1 data is in Column A starting in Row 2, then it is "=2*a2+10". You really need to call them to find out what the corresponding values are though.
Yeah that's not how it works, it's something specific, and he needs to ask like you said.

Example: For AEM UEGO...
The analog output from the AEM Analog Wideband Air/Fuel Ratio gauge is a linear dc
voltage signal that varies from 0.5 Vdc at 8.5:1 AFR to 4.5Vdc at 18.0:1 AFR over the
operating range of the gauge.

AFR = 2.375(V) + 7.3125

For example, if the output is 2.0 Vdc, the AFR is 12.06:1
2.375 * 2.0 + 7.3125 = 12.06

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