![Quote](images/misc/quote_icon.png)
Originally Posted by
TCSS07
then it obviously didnt like something and must of hit a torque request demand issue and closed the throttle on you. can you post the file you used in the log that didnt boost? all i know is when i made the changes to the charts that i posted in my first response it held boost all the way to 7k. i know on my le2 2nd gen cruze whenever i flash i cant go into boost right away the ecm has to do like a power down cycle its weird. when i would flash and go to boost i would only get like 3 psi but if i flash and let the car sit for a hour and come back then boost was restored i never quite understood why but i havent messed around with it too much since its a lease and dont really care
these were the settings i was suggesting from the start in the link i provided
Quote from chris @ hptuners
The main culprit might is probably the knock airmass table, or the turbo overspeed limiting.
eg.
Pressure Delta factor = 2.00 whole table
Knock airmass = 2.00 whole table
Overspeed limit Min = 2.00
Driver Demand MAP A = Set 100% pedal row to 200
peak torque = 500 whole table
brake torque = 500 whole table
overboot limit = 500 whole table
rear propshaft max torque = 8192
This will hold the wastegate closed to your boost limit. I found using the knock airmass table and the Turbo Overspeed Pressure Ratio Max table easy ways to control boost instead of just the max limit table. The Knock airmass table will let you ramp in boost easily, while the pressure ratio limit is good for dropping of the boost at high RPM's where the intercooler is struggling.
i noticed your file posted has overboost torque set at 0 so in case your car went out of scale for a sec it would reference this chart which is commanding 0 torque