What ethanol sensor is everyone using?

[-WickedST-]

Looking to add an ethanol sensor to my fuel system so I can get ratio readings on my P3 gauge. In talking to Unbroken he mentioned a continental series sensor but looking online there are a number of options. Looking to see what you are using (brand, model, etc) and any pros/cons.

 

[Loaded05]

Just get the one that P3 sells. It will work fine.

https://www.p3cars.com/products/gm-continental-style-ethanol-content-sensor-w-harness

 

[-WickedST-]

Done… thanks.

 

[Nick_PSUV]

I ran the P3 with the Continental from them also, along with FenFab lines - worked great!

 

[-WickedST-]

Okay, I ordered the Continental Ethanol Gauge from P3 and now have everything needed for install. The Ethanol sensor install is obviously a no brainer but wanted to do a sanity check on the wiring... Is it really as easy as Red/Red, Black/Black, White/White, Blue/Blue, Brown/Brown for connecting wires? Also, what fuse location is everyone using for power and where do I connect the "Dimmer" wire?

 

[Loaded05]

Yes, the wiring is just that simple. Be sure to mount the P3 ethanol sensor adaptor inside the vehicle (its not waterproof). I didnt use or connect the dimmer wire.

 

[-WickedST-]

Thanks Loaded!

Which fuse did you tap in to for the power?

 

[Loaded05]

I used the 4th fuse in the middle row.

 

[-WickedST-]

Thanks!

 

[-WickedST-]

Okay… more questions. I assume I am really overthinking this install so here is what is hanging me up. According to the P3 site we only need the OBD2 port for the gauge to work but I am adding the ethanol sensor. Do the power and ground for the sensor and ESVA need to go to the same power/ground locations or can you separate them? Also, where the heck are you all entering the vehicle behind the fuse box in the engine compartment?

 

[-WickedST-]

Never mind…. Wiring everything together and made my own wire entrance.