Hi does anyone know how to use the avcr pressure sensor to log boost with
evoscan

 

does the AVCR have a 5v analogue output?

 

I just looked around on the internet a bit and I read that the AVCR uses a "standard" denso map sensor with a 0-5v output. So I think it would be fine to use.

Tephra - It's nice to have some one else on the boards who is active at this time. I am studying in Sydney for the semester and I feel like the rest of the board is sleeping while I am online, lol.

 

lol!

u should meet up with the sydney evo guys...

evolutionoz.net for AU forums

 

Thanks for the info, I think I really should do that. I am going through withdrawal not having my evo, it would probably help just to be around some, lol. I wish I had realized you live in Melbourne earlier... I was down there for the F1 race.

 

How would i wire the map sensor up so i could use it to log the boost

 

I've just done this on my Evo8 260. I took a feed from the AVCR harness blue wire and put it into pin 73 in the ECU. You need this formula in Evoscan 0.27882*x-21.33 to get a pressure reading in PSI. You log MUT 38. It is already set up in Evoscan, just change the formula. I see you have an Evo 6 so don't know if the situation is exactly the same for you.

 

Thanks for that i have a evo 7 ecu fitted so i should be able to log it i am using 2 byte load and rpm do u know if this will work ok also do i enter this formula in the eval section in evoscan

 

Looks like Evo7 and Evo 8 260 have the same ECU pin outs so I think you will be fine.

 

Thanks again al give it a go and post up the results

 

nice one on the formula John!

 

Just curious, e7 and e8 pin 73 are not in use, do we need to mod the ROM to log the boost?

 

should just work

hook up a 1v source and log MUT38 without any formula.

it should read 50ish.

 

Cheers. I knew maths would come in useful on day.

 

This is great.....
I plan on doing this real soon on my Evo8.

What would the formula be if I wanted to log the the boost reading in Bar or Kpa?

Thx in advance