Custom Air/Fuel Meter

[cail]

Check this
Air/Fuel Meter

Any comments?

[zoinks]

Is it connected to a wideband?

[cail]

it could be plug to a wideband or a narrowband

on my car, it's on the wideband

[zoinks]

The main reason I asked is because an air/fuel meter isn't accurate at all even plugged into the stock "wideband" sensor. However, that looks pretty awesome and great job on the install. If you don't mind, would you give details on it. Was it a kit or from scratch. Again looks great.

[cail]

That wasn't a kit.
I made a search on the web and find some good informations to build my own
It's based on LM3914 chip, Using the signal from the wideband oxygen sensor to the ECU.

What is the problem with oxygen sensor on Subaru? A lot of people say the rear oxygen sensor isn't accurate because it's after the turbo...and some people say the front oxygen sensor isn't accurate? So, to get a good signal, i guess i have to put a new oxygen sensor?WTF? Is there any good place to get the reading?

[zoinks]

First of all congrats for doing that yourself, it looks badass. Secondly, I'm no expert but from what I've read, the rear o2 is pretty much just there to monitor the downpipe cat. As for the front sensor, it is 'wideband' but not like an aftermarket one. So pretty much for tuning and monitoring A/F it doesn't really help. Maybe someone else who knows first hand will chime in (surprised no one else has). I'm just going on what I've researched. Most people just use an EGT to keep an eye on it.