Will Optical bump change TDC offset if relearned?

[97gmc6.5]

Will Optical bump change TDC offset if relearned?
I set my actual timing at about 3.5 in time set mode
then i have 11.1 desired and 11.1 actual timing
and the snap-on mt2500 scanner reads the TDC offset as 5.9 i've read that this scanner reads different and that -1.94 reads 5.4
so does the Optical bump change the TDC offset number too?

 

[97gmc6.5]

I'm wondering if the optical senser bump advanced the TDC offset some but not the base timing because its still at 3.5 in the time set mode
But when i exit the time set mode my base (actual) timing and desired are at 11.1 i read it was to be about 8.5 degrees

 

[dieseldummy]

I'm not extremely well versed in the DS4 operation so I can't help much, but if you did the optic bump it can/will effect the operation of the pump. Usually if you can get the TDC offset around -1.5 to -1.75 things run pretty good. I've never dealt with the base and desired timing that is out of my leauge.

 

[97gmc6.5]

I changed the optic bump back to stock setting and my timing dropped down from 11.1 to 10.0 and i relearned the TDC off set at 6.1 then in the time set mode the base timing was about 4.5 and setting code 1214 TDC offset so i turned the ip back some and got it at 3.5 with the actul timing at 7.0-7.5 degrees and a TDC offset of 5.9 with no more 1214 code.
It starts better now and the wot smoke is more of a gray black then the pitch black i was getting