I bought a mostly finished project that was an lq4 drive by wire with a turbo. it would start and rev up but I soon found out that once the pedal went over 76% which happened before half throttle, it would cut to 0%. I'm pretty sure I could have fixed it with an 01-02 truck tac and dbw throttle body but they are non existant in the junk yards and near $500 for the pair new. way more than the 03+ variety for some reason. So for that reason I spent $40 converting to drive by cable. I had a hard time getting it to start at first with the dbc setup as is would peg the wideband rich when I could coax it to start. I eventually ended up dropping the entire VE table down about 400%. My idle cells in the primary VE table which used to be around 27-29 with the DBW are now around 6-7. Even this low, it still idle and partial throttle revs around 10.5-11.5 on the wideband. At one point I had theses same cells around 4 and it idled a bit rich still but a lot smoother but any sharp throttle movements would spike full lean before starting to rev.
I didn't expect the throttle pedal swap to affect my VE table at all! Does this seem normal or did I miss something in my tune or possibly even wiring? all I had to do for wiring was remove one wire from the pcm that went to the tac and then add 7 more wires to the pcm (3 for the new TPS, and 4 for the IAC valve). Then in system options I removed the ETC from the options for the GMT800 system I am using.
I have attached 2 tunes. the dbc tune is how it sits at this moment. the other tune is before I swithed from dbw to dbc
thanks