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any suggestions for an ecu tuning solution? Thanks

yea i figured. took it to get checked today and it was installed correctly. its just doing exactly what you said. Should i get a wideband? How much more useful will it be?

any clue where i cud tap into the second o2 sensor?

so i shud use the second one then? Thanks

I have a mazda 3 but it has the 1.5L mazda 2 engine in it.

anyone knows where to tap off the o2 sensor for a narrow band glowshift air/fuel gauge for the 1.5L engine? I have it connected and the gauge reads to the edge of the optimal range and stays there even at wot. dont know if i have it connected to the wrong wire or something. Thanks

BTW the gauge is a narrow band glowshift.

Hi im new. I would like to know if anyone could help me to find the tap for the o2 sensor for my air/fuel gauge. My mazda 3 2010 has the 1.5L mazda 2 2011 engine in it and i wud like to install the gauge. I have tapped it from a wire that i suspect is the o2 sensor how ever, it stays on the edge...