I bought a greddy air/fuel gauge and when I installed it the warning and memory light blink, and it keeps switching between like 8.0 and 14.5. When I accelerate it goes to 8.0 and then when I let off the gas it goes to 14.5. Anyone have any idea on what is wrong, or how to fix it?

#1- What car do you have?
#2- how did you connect it?
#3- you do realize that it's worthless for reading true A/F?

#1- What car do you have?
#2- how did you connect it?
#3- you do realize that it's worthless for reading true A/F?

ditto.

#1-2004 sti
#2- welded in o2 sensor behind the turbo before the cat
3#- why is it considered a narrowband? What gauge will tell me the true A/F reading?

it's not worthless if he welded in a devoted o2 sensor is it?

If the dedicated sensor is wideband and the gauge is able to read it, then it will be useful. But if it's a narrowband (1V) sensor it will only be marginally better than tapping the rear 02.

Is it a wideband, with a wideband guage? Otherwise the setup is wrong.

its the only A/F gauge that greddy makes. I thought that it was a wideband, but some people are saying its not.

so has anybody installed one and know what is wrong with mine. If you have put one in post the wiring diagram you used!!!!

Check out www.ravenblade-impreza.com and go to the following link:

Modification > Interior.

There is comprehensive documentation there as to how to install an air/fuel gauge. Good Luck.

link doesn't work, but I think it is my O2 sensor was mounter in a bad place(took it out), and because of where the cat is I can't mount it any farther down on the downpipe unless I was to get a catless down-pipe.

I talked to the company, and they said the sensor is fine. I just had it in a bad location, so I will be selling this gauge. I have talked to other wrx and sti owners who have this gauge and u have to have a catless downpiipe, and put it towards the end of the downpipe to make it work correctly. I'm selling it for $200 if anyone is interested.