a/f monitor

e_normus · Post by **e_normus** » Sun Feb 28, 2016 4:44 am

looking to install afr gauge, don't know witch one to buy any preference, or opinions, ease of use/install

Clonebug · Post by **Clonebug** » Sun Feb 28, 2016 8:08 am

I have the Gen 3 version of this unit.
I am very pleased with it.

The Gen 4 is even on sale right now...

http://www.plxdevices.com/Wideband-O2-T ... 002719.htm

If the sensor cable isn't long enough it is easy enough to either lengthen the wires or else buy a couple mini molex connectors and built an extension.
I had to add a couple feet to mine the way I routed it from the engine to the dash.

I have a 4 ft. extension hanging in the garage that I didn't use since I had two of them made.

e_normus · Post by **e_normus** » Sun Feb 28, 2016 9:17 am

Clonebug wrote:I have the Gen 3 version of this unit.
I am very pleased with it.

The Gen 4 is even on sale right now...

http://www.plxdevices.com/Wideband-O2-T ... 002719.htm

If the sensor cable isn't long enough it is easy enough to either lengthen the wires or else buy a couple mini molex connectors and built an extension.
I had to add a couple feet to mine the way I routed it from the engine to the dash.

I have a 4 ft. extension hanging in the garage that I didn't use since I had two of them made.

where did you mount your sensor? I'm running turbo very mutch like yours when in the beginning

Clonebug · Post by **Clonebug** » Sun Feb 28, 2016 12:41 pm

Sensor is 6 inches from the turbo outlet.

Look carefully at the bend coming out of the turbo.....you can see it there.

e_normus · Post by **e_normus** » Sun Feb 28, 2016 1:07 pm

in the instructions it says to be 24 " from turbo outlet so I was worried about that my pipe maybe 15 " long so I'm glad to see it will work in that location

Clonebug · Post by **Clonebug** » Sun Feb 28, 2016 4:22 pm

It will be fine.

Just make sure you have a long enough pipe after the O2 sensor so it doesn't pick up any free outside air and give you false readings.

Post by **Piledriver** » Sun Feb 28, 2016 7:46 pm

e_normus wrote:in the instructions it says to be 24 " from turbo outlet so I was worried about that my pipe maybe 15 " long so I'm glad to see it will work in that location

A few OEM turbos have the O2 sensor bung built into the turbine housing.
Might want to run an extended bung at least if you go there.

madmike · Post by **madmike** » Mon Feb 29, 2016 4:06 am

Hey E, I see your in Michigan? If your close to me?

e_normus · Post by **e_normus** » Mon Feb 29, 2016 4:46 am

madmike wrote:Hey E, I see your in Michigan? If your close to me?

manton mi

madmike · Post by **madmike** » Mon Feb 29, 2016 5:39 am

Ok, to far ,lol,going to Lansing for the BBS?

e_normus · Post by **e_normus** » Mon Feb 29, 2016 5:59 am

planning on going if nothing comes up

rubenski · Post by **rubenski** » Tue Mar 01, 2016 10:00 am

I have the aem failsafe. Includes a boost/vac too. So 2 in 1

look it up. II'd say its a verry nice gauge and clear instructions and fair price.

miniman82 · Post by **miniman82** » Thu Mar 24, 2016 7:15 am

The 24" rule applies to modern vehicles which typically have the turbo mounted as close to the valves as possible to conserve heat, the worry there is sensor overheating. VW engines already have a much longer exhaust system due to the flat engine configuration, so the 24" rule goes out the window. I try to place mine about 4-5" back from the turbine outlet flange, never had a problem. You lose so much heat through the primary tubes on this engine, you'll never overheat the sensor.

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