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I have tuned car, Alfa GT 1.9 16v MJet.
info for pressure of turbo dont want go more than 1.6 bars. my turbo working on 2.2 bars. I change max info on display to 2.5 bars but max info on display is 1.6 bars.
anybody nows why or how I can change that???
Posted : 09/07/2018 5:25 am
Per Wiki, the OBD MAP pid (0b) tops out at 255 kPa =
22.32 Psig max boost which is approximately 1.6 bar.
You might try pid 0170 for a response or a manufacturer
specific pid instead.
Posted : 09/07/2018 5:51 pm
Topic starter
Quote from Capp777 on July 9, 2018
Per Wiki, the OBD MAP pid (0b) tops out at 255 kPa =
22.32 Psig max boost which is approximately 1.6 bar.
You might try pid 0170 for a response or a manufacturer
specific pid instead.
I changed MAP senzor with another who can misurate max presure until 2.5 bars. original can 2.0 bars..also ECU is reprogramed and is another set up for new MAP senzor in ECU.
Posted : 23/07/2018 9:46 am
do a look here: https://torque-bhp.com/forums/?wpforumaction=viewtopic&t=2894.0
I'se sorted the boost reading using standard map sensor PID and this formula: A+256*(1-((24-A)&256)/256)
Posted : 24/07/2018 5:33 pm
some car will roll over at 255 kpa, some will stop at 255
my str-4 was rolling over at 255 km/h ..oups
my genesis was stopping at 255 kpa
Posted : 25/07/2018 6:34 am
But what is with the cars that are stopping at 255kpa. Is there also a fix ?
My car peaks at 1.9bar....but torque only reads 1.6bar. there are no negative numbers in the log....so in my car the fix from this thread won't work 🙁
Posted : 29/07/2018 2:01 pm
