Kevin Doe
May 6th, 2008, 02:18 AM
Ok, when looking at all the DFCO settings and curves I'm highly confused.
Lets start with the parameters section:
B3307 DFCO Re-Enable Timer
B3308 DFCO M6 Enable Temp
B3309 DFCO M6 RPM
B3310 DFCO M6 MAP
B3311 DFCO M6 TPS
B3312 DFCO M6 Speed
B3313 DFCO Temp Enable
B3315 DFCO Vehicle Speed Hysteresis
B3317 DFCO Throttle Hysteresis
B3319 DFCO RPM Hysteresis
B3321 DFCO MAP Hysteresis
1. What is the difference between B3308 DFCO M6 Enable Temp and B3313 DFCO Temp Enable?
One description says, "Engine coolant temperature must be above this to allow DFCO M6 to occur."
The other description says, "Engine coolant temperature must be above this to enable DFCO.
When all of the DFCO enablers are met, hitting any DFCO activate level will turn on DFCO. After DFCO has been enabled hitting any DFCO disabler or hitting every DFCO deactivate will turn off DFCO."
That leads me to believe that DFCO and DFCO M6 are different things. Stock calibrations for a LS1 GTO are 140 degC for the former, and 70 degrees for the latter. That means that DFCO M6 should never be active based upon B3308. But I know that it in fact does work. I'm confused.
2. There is B3312 DFCO M6 Speed, which has the description, "Vehicle speed must be above this to allow DFCO M6 to occur." This is set to 322kmh stock, which means DFCO M6 will never be active.
Then there is the table, "B3314, DFCO Vehicls Speed Enable. Why are there two speed enable places? A table and a single parameter. Whats the difference?
3. The same goes for RPM, MAP, and TPS. They all have tables AND single adjustments.
I'm thinking that DFCO and DFCO M6 are different things, but I'm not sure since there isn't really any description of them.
Also, can someone explain the activte/deactivate enable/disable stuff to me. So enable means that DFCO is allowed to occur, and activate actually turns it on?
Lets start with the parameters section:
B3307 DFCO Re-Enable Timer
B3308 DFCO M6 Enable Temp
B3309 DFCO M6 RPM
B3310 DFCO M6 MAP
B3311 DFCO M6 TPS
B3312 DFCO M6 Speed
B3313 DFCO Temp Enable
B3315 DFCO Vehicle Speed Hysteresis
B3317 DFCO Throttle Hysteresis
B3319 DFCO RPM Hysteresis
B3321 DFCO MAP Hysteresis
1. What is the difference between B3308 DFCO M6 Enable Temp and B3313 DFCO Temp Enable?
One description says, "Engine coolant temperature must be above this to allow DFCO M6 to occur."
The other description says, "Engine coolant temperature must be above this to enable DFCO.
When all of the DFCO enablers are met, hitting any DFCO activate level will turn on DFCO. After DFCO has been enabled hitting any DFCO disabler or hitting every DFCO deactivate will turn off DFCO."
That leads me to believe that DFCO and DFCO M6 are different things. Stock calibrations for a LS1 GTO are 140 degC for the former, and 70 degrees for the latter. That means that DFCO M6 should never be active based upon B3308. But I know that it in fact does work. I'm confused.
2. There is B3312 DFCO M6 Speed, which has the description, "Vehicle speed must be above this to allow DFCO M6 to occur." This is set to 322kmh stock, which means DFCO M6 will never be active.
Then there is the table, "B3314, DFCO Vehicls Speed Enable. Why are there two speed enable places? A table and a single parameter. Whats the difference?
3. The same goes for RPM, MAP, and TPS. They all have tables AND single adjustments.
I'm thinking that DFCO and DFCO M6 are different things, but I'm not sure since there isn't really any description of them.
Also, can someone explain the activte/deactivate enable/disable stuff to me. So enable means that DFCO is allowed to occur, and activate actually turns it on?