Hinzbilly

Hey All, I picked up a GlowShift Tinted 7 Color Needle Air / Fuel Ratio Gauge

Im having a little trouble hooking it up. Im going to post the directions and hope you all can shed some light on my trouble. Fyi I have a 95 F150 Regular Cab Shortbed 4x4 with the 5.0

"Gauge Installation
2. Air / Fuel Ratio: Connect the green wire to the vehicle oxygen
sensor signal, before the catalytic convertor. You may connect this
wire directly to the ECU harness or splice into the signal wire
leaving the sensor. This wire color can vary, be sure to consult your
vehicle’s owner’s manual. (0v ~ 1v Output - NARROW BAND
ONLY)
Note: If your vehicle does not have a narrowband o2 sensor, you
will have to purchase a single wire narrowband o2 sensor to
complete this installation."

Z7What

It's a complete waste of time and money to have a Narrowband Air/Fuel Gauge. I'd suggest returning it and getting a Wideband A/F gauge.

Wayne

MGD

Hi.

Ummm ... still waiting for yer question(s).

What exactly do you need help with? Those instructions, while brief, describe what you need to do - find yer sensor, connect the wiring and go. So - please elaborate.


I hope you realize, since its a narrowband device, yer not going to get any useful data from it - not possible as a narrowband sensor can't output the full range of AFR values - just a very limited range around stoich. Once you go open loop, it's going to be absolutely useless.

For that you need both a wideband oxygen sensor and a wideband gauge to read/display the actual AFR.

Like these: http://www.innovatemotorsports.com/products.php

Sorry - but you wasted yer money. However it IS yer money to waste.

Need more proof? Compare those instructions you posted with a real wideband's documentation:

http://www.innovatemotorsports.com/s...Manual_1.1.pdf

http://www.innovatemotorsports.com/s...Manual_1.3.pdf

http://www.innovatemotorsports.com/s...C-2_Manual.pdf

Notice anything?

Seriously - if yer serious aboot having an instrument that actually does provide accurate & useful info, consider returning what you purchased and investing in one of Innovate's devices. I've used them for years - they are excellent quality products with terrific support.

good luck
MGD

EDIT: Dang it Wayne... my single-fingered hunt & peck can't keep up with ye!

Hinzbilly

My question is which wire do i connect to on the O2 sensor. When i last looked there were about 4 wires. I also would not mind connecting it to the ECU i just need to know what pin. Thanks for the other gauge link. Ill give them a look. This is just something I have laying around and dont want a open hole in the pillar where another gauge took a ****. Id but the one you are talking about but im currently rebuilding my motor and putting on a lift.

MGD

Hi.

And my answer is - you may not be able to use it. A 4-wire sensor uses a differential output (not referenced to ground). According to the 'instructions' you posted in yer first post, this thing of yers is expecting a 1-wire sensor output (single-ended signal referenced to ground). It can't accept a differential output signal. It actually specifically states what type of sensor output it requires.

Now - IF for some amazingly rare reason it's 3, 2, or 1-wire sensors that you have, the HEGO output is the BLACK wire and is single-ended.

Refer to this document - starting on Page 12. All the various narrowband sensor outputs are detailed.

http://www.ni.com/pdf/manuals/O2_Sensor_UM_RevD.pdf

Sorry - don't have the pinout for yer PCM - but if you are running 4-wire sensors it wouldn't help anyway - and I'm certain we use 4-wire sensors. The spares I have hangin' in the garage are, anyway

Good luck
MGD

Hinzbilly

Would I have to put in another O2 Bung? or does the factory system some how tie into the new O2 Sensor that comes with the gauge?