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I want to put in a greddy air/fuel ratio meter, so that I can accurately see my A/F ratio in real time and know if I'm running either rich or lean. I keep coming across references to "wideband lambda" sensors with A/F ratio meters. What exactly is that? Or...what's the best way (read: what do I buy and install) to get the most precise A/F ratio data to a Greddy gauge (does the gauge come complete with high-quality sensors? can't seem to get a straight answer on that anywhere).

I don't have the stock ECU anymore, it's a PFC Pro, and presumably I have whatever sensors come with a BNR32.
 

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the a/f gauges you are talking about are not very accurate

the only way to get accurate readings is to buy a wideband lamda sensor and gauge

that will cost around £300, and thats a starter price

if i remember aem or is it uem??? do them they are around £300

here's some very reasonably priced ones on ebay, dont ask if they are any good, I dont know

http://cgi.ebay.com/ebaymotors/Inno...8QQihZ010QQcategoryZ43989QQrdZ1QQcmdZViewItem
 
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