AFR Gauge Installation

[Shelby3]

Where is the best location to pick up the signal input to an AFR gauge? Thanks

 

[Simms]

You talking about a wideband? Most use the **** for your O2 sensor.

 

[Shelby3]

Auto-Meter Phantom Air/Fuel gauge. Instructions say to tap into the output of an O2 sensor.

 

[GTSnake]

Sean Roe told me the black wire on the O2 sensor.

I found it easier to tap at the wire harness connector at the PCM. I tapped both lf/rt then I wired them to an A/B switch selector so I can check AFR at either side.

 

[Shelby3]

Sean Roe told me the black wire on the O2 sensor.

I found it easier to tap at the wire harness connector at the PCM. I tapped both lf/rt then I wired them to an A/B switch selector so I can check AFR at either side.

That sounds like a great idea. Can you give me the pin numbers, I have my shop manual loaned out? Thanks

 

[Jack B]

You might want to rethink what your direction. The O2 sensors on the viper are not wideband (wb). The oem sensors are not accurate except at or near 14.7. You are far better off installing a wideband system, otherwise they are only eye candy and cannot be used for tuning.

 

[Simms]

You might want to rethink what your direction. The O2 sensors on the viper are not wideband (wb). The oem sensors are not accurate except at or near 14.7. You are far better off installing a wideband system, otherwise they are only eye candy and cannot be used for tuning.

I'd definitely go with JackB's advise.

 

[Mr Hemi Head]

Where is the best location to pick up the signal input to an AFR gauge? Thanks

Shelby I agree with the others, a wideband A/F monitor is a must with the mods your running. Feed the signal into the VEC2 and get some valuable data to optimize you setup.