Hi BD,
Is your neighbour's truck stock...? What mods...? Has it been tuned already...?
stock 01 silverado 5.3 with cat back exhaust, never tuned. It runs real good even stock but there is always improvement.
For wideband look at what various people are using, some are more portable than others.
In the tune file:
- high octane table is incorrect (does the motor ping...? Is it boosted...?).
high octane table was left stock, no turbo or blower.
- the axle torque settings are messed with, too many changes...!
I thought maybe this would help reduce any torque limiting tables that may reference.
- set B3609 to zeros.
this makes sense now
- B3616 requires too much throttle (poor throttle repsonse).
- B3605 is too lean in the upper columns.
this table was left stock, but I understand where you are going.
- O2 switch points are wrong.
I dont have much understanding how far I should move this away from 450mv. I assume using a WB I would have a better idea but not sure.
In the log file:
- what altitude? MAP indicates above 6000 feet.
[COLOR="SeaGreen"]I live at 5,000 and log was done at 5,000 ft.[/COLOR]
- zero to 87 mph in 27 seconds (what was being hauled...?)...?!?
hahaha, ya she was pretty slow to reach 80. The on ramp to the freeway is about a 4% upgrade for almost a 1/4 mile.
- B1S1 (left/front) NBO2 is dead,
After looking at many logs from this I had this question in my mind if some thing is wrong due to the flat line.
- B2S1 (right/front) NBO2 indicates very poor activity and lean, may also be dying.
- KR is present at WOT, spark tables may be wrong, or MAF is dirty.
- MAF may be dirty (what air filter...?) or it may be reading low due to altitude.
after looking into how the maf line is jumpy, I think possibly the air filter is dirty. It has stock intake system.
I would go back to stock and start again, doing only minimal changes (and only 1 or 2 at a time).
Cheers
Joe