Okay, so i recently bought my 2011 Evo GSR and i ordered a boost and air fuel ratio gauge. Brought it to a shop to get the gauges installed, they installed the boost perfectly but they had trouble with the air fuel gauge. Does anyone know exactly where the A/F gauge should be hooked up to? ecu wire? color? The gauge has power but is not running right, i provided them with a wiring diagram for the evo x but not sure if its the same for the 2011 evo. Btw, its a narrowband gauge so it should work with our narrowband O2 sensor. Please help!

 

Wow can someone answer instead of just reading the post!

 

I've heard that their a/f gauge isn't very good for accurate readings. Can you post a picture of the wiring diagram?

 

if you are installing a narrowband A/F gauge, its useless... might as well get something usefull like an oil pressure guage... all your gonna see on a narrowband a/f is red-green, red-green, red-green.... if you want to really see whats the real A/F, get yourself a wide band and install it on the downpipe.

 

Thank you for ur response. I already ordered a wideband, I'm waiting to get a tune and have it installed in the down pipe. In the meantime I'm trying to at least get the narrowband working to see how rich/lean its running. Do you think I should try the rear o2 sensor? And just to confirm, on the 2011 evo x's the OEM is a narrowband o2 sensor correct?

 

Thank you for ur response. I already ordered a wideband, I'm waiting to get a tune and have it installed in the down pipe. In the meantime I'm trying to at least get the narrowband working to see how rich/lean its running. Do you think I should try the rear o2 sensor? And just to confirm, on the 2011 evo x's the OEM is a narrowband o2 sensor correct?

http://www.roadraceengineering.com/e...-ecuwiring.htm

I believe that is the correct wiring diagram. But is that true to the new 2011 evo x's as well?

 

I installed a narrowband and all it lets you know is that you're not lean. I tapped ECU Pin#38 "Heated Front Oxygen Sensor"

 

narrowband a/f gauge runs off of inline wiring it was made for old school muscle cars it should not be used to monitor our type of application