Install air/fuel gauge

[SpitFire]

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

 

[SpitFire]

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

 

[PIOCAS]

the ZY engine use a Wideband O2 as first sensor and a narrow band after catalitic

 

[SpitFire]

so i shud use the second one then?
Thanks

 

[SpitFire]

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

 

[njaremka]

a narrow band A/F gauge is a useless piece of crap. dont waste your time trying to install it. especially if you hook it up to your second o2 sensor, all it will tell you is your cat-converter is relatively good.

 

[SpitFire]

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?

 

[njaremka]

if you do not have an ecu tuning solution, any A/F gauge will be useless.

 

[SpitFire]

any suggestions for an ecu tuning solution?

Thanks