2006 4.3 5spd BIN

[Ritch]

factory tune

[Ritch]

Only mods are air cleaner box delete now with cone style


plan to match the curve of VE table into higher RPM going for 6500 rev limit until LC-1 gets hooked up for full VE tune.

from this scan lots of fuel seems to be present when what I assume is PE mode. Suspect B3618 is too rich

[joecar]

Ritch,

Several observations:
- in OL, it doesn't seem to me that it's getting the AFR from the PE table, except in one place below 4000rpm where it commanded 12.37;
- set B3608 and B3609 to zero, you don't want PE to delay;
- in most places it seems to stay in CL at WOT (I can't see why), so it trims to stoich using LTFT's (it's not using B3618/B3605, otherwise you would see these in the commanded AFR)... basically it's commanding stoich at WOT, this is too lean!

[Ritch]

We hit the rev limit at frame 600 I figure should be PE.

How does B1208 effect when abuse is met? I'm thinking if the number was 1.000 there would be no effect. (EQ Ratio)

[joecar]

My understanding is that abuse management kicks in when shifting from Park/Neutral to Drive or Reverse...
so I really don't know for sure if it applies in this case.

[Ritch]

Well some VE tuning may be in order once the truck gets fixed. He blew the rear end. Maybe broke an axle.

[joecar]

Well some VE tuning may be in order once the truck gets fixed. He blew the rear end. Maybe broke an axle.If the axle broke due to overwhelming it, may want to check that the AT operation is ok (when the truck is running again)...

also visually inspect rear of trans.

[Ritch]

AT as in Automatic Transmision? It's a 5 spd manual and has 5000km left of warranty. So he's got some explaining to do. They figured the driveshaft still turns but forward action. DTC C0055