ToRy 70 wrote:Hi Mario,
Excited to jump on this! Hopefully I can maintain momentum and keep knocking stuff out to get running again.
If you don't have individual O2 sensors near the ports to compare data, how do you dial in the wideband delay? Do you just estimate? It's been a while since I've opened up a copy of TunerStudio.
No need to guess...
Save out your "normal: AFR table, or VE table if not using "include AFR table" calc
("include" is default, and I can't think of a reason NOT to use it)
You can use fuel cut, but its MUCH easier to temporarily set up 3 very narrow bins on the AFR table and have it step up toggle hard rich/back lean over a narrow band at the desired RPMS, then you just compare the PW rise/fall to the WB response at the 3 desired MAPs.
(MS3 has a MUCH larger internal delay table for long term trim,same technique works, just takes more time, the delay seems pretty linear on my setup, YMMV)
The delay will be pretty obvious in the logs, and VEAL will go from working great to working
awesome.
The delays at low load and RPM can be pretty loooong with typical VW headers.... I set my RPM bins for 2200/3900/5600 or thereabouts, but obviously just put it in the RPM range you use.
Save the table out for reuse.
Then reload your "normal" table.
