What to do to avoid it??

[02Ls1]

What i need to avoid this dtc's to pop up?

Im trying to tune my turbo 5.3, at WOT i get few dtc's popping up and goes to engine reduce power. Im on MAF open loop and this are the dtc's i get P0068-P0108-P0121.

I've read somthing on the engine diagnostics on the tables of Diagnostics Test and P0068

Im lost

[planethax]

I would revist the Engine Diagnostics.
Example
max airflow
Airflow delta and Map Delta

@ 79% TP and 4200 Rpm you have 383gs Airflow and a Map of 118Kpa will exceeds your Max Limits

Look at the Airflow at the Rpm see what you are at and then edit file to just a little more than that.

Etc etc

[02Ls1]

What will happen if i max them out?

Im on pure MAF, i wtill have to edit the MAP?

[02Ls1]

OK, in my log i got to 5025 rpm's at WOT and my MAF (lb/min) at 61.59.

On my file at WOT (100% tps) airflow delta is at 33.73.

You saying i have to go to that table and insert at least 65.50? correct me if im wrong.

[4evervette]

I would revist the Engine Diagnostics.
Example
max airflow
Airflow delta and Map Delta

@ 79% TP and 4200 Rpm you have 383gs Airflow and a Map of 118Kpa will exceeds your Max Limits

Look at the Airflow at the Rpm see what you are at and then edit file to just a little more than that

Etc etc

what did he say ... u need to go and find out ur self ..or max them out then reduce them ..

as far as p0108 ( from memory high voltage or performance) u need either to delete from DTC code or upgrade to 2 bar sensor