Originally Posted by
swingtan
In my E38 tune, it certainly makes a difference as long as you are in OL mode ( which is all the time for me ATM ).
However, if you are using the O2's to trim (CL Mode), once entering CL Mode it does nothing (remember that all tunes run OL for a short time just after start up, utill the NB O2's warm up). That is because PE mode is not OL mode, when it comes to this table. PE mode is more like "rich CL mode" and the PE mode fuel tables are used. They are all directly referenced back the set stoichiometric level in B3671.
I've had a look at an HSV tune and that had values of 1.46 in B0141, which when multiplied by the values in B0146, comes out to about stoich. The funny thing there is that it's b0146 that has values of 0.1, not B0141.
Simon