Alcohol sensor, who's added one
 

Looking at adding a alcohol sensor into my 04, who has added one in? Just wondering what needs done on the wiring end to get it to play with the Pcm. I have the alcohol specific tables in my tune but have yet to see how the sensor ties in. (Pin out wise).

I can easily build the lines to add it to my return line, and once I do my new motor will step up the injectors so just planning ahead.

I wired one into my 2011 flex fuel with the E38 ECM. Not sure if its the same though.

I believe you wire it in similar to an early application.


The sensor takes a reading and references the tables in the PCM based on feed back.

Ya, trying to find what pin it gets wired to at pcm.

I believe it's like the 2004 LS1 GTO application. 1MB application

Which i have read is Blue 56

I added one on mine. It works great. Mine is 05. As mentioned above, pin 56 on the blue. I don't use a MAF so I just used the 5v from that. Just because the tables are in your tune, don't just adjust them. I flashed in a flex fuel tune to be certain.

Which sensor did you use, I see there are various ones. I will add another 450 and am undecided on injectors at this point. Looking at 130lb

13577379 is what I used. I actually got new injectors. I just got 160lb Bosch stainless injetors, and will be putting these injectors in my Chevelle. I will be converting that to flex fuel too, but will be making less power.

At least I think 130's are big enough.... Hmm

How much power do you want to make. I made 955 on my 130's.