i have an 07 lbz and running copilot. i am having some problems with po777 and po700 with copilot on or off. i know it is the copilot system because it happened when the tranny was stock and now has happened with the suncoast V and 1057 tc installed. what i was wondering is can you get as good or better shifts at wot with efilive as with copilot? any help would be appreciated.

thanks,

harleyman

efilive dosnt have the release for the TCM yet on the 06-07. From what I understand it will be included in the next release though.

Ok....for the 5 speed guys ;) Couyld you eliminate the need for the co pilot? Make it shift nice and firm at WOT and like stock when you arnt on it? Does it offer enough controll to do much good? I know it will change some parameters but does it change enough?

From what I have been told, the co-pilot can/does adjust how long it takes to shift, line pressure and torque converter lockup. From looking at the EFILive TCM tables, it looks like all that can be adjusted. Although you would loose the on the fly adjustability of the co-pilot.

I havnt messed with my friends 04.5 TCM yet. Figure I will risk breaking mine first before someone elses.

From what I have been told, the co-pilot can/does adjust how long it takes to shift, line pressure and torque converter lockup. From looking at the EFILive TCM tables, it looks like all that can be adjusted.


The co-pilot has an internal solenoid valve on the reverse pipe that blocks it off at WOT to prevent main line from drainig off through there. You can not duplicate this with TCM programming.

Ah, I knew there had to be something else for 1400 dollars

I know it couldnt bump the line pressure.....

But IMO if you program the TCM correctly there is no need to change it on the fly. Nice stock like shifts when you are putting around and snap em off when you put your boot to it.

I wonder if you could control a solenoid with e EFI???? ;)

I wonder if you could control a solenoid with e EFI???? ;)

interesting....

wire up a solenoid to the DSP output....

Just a thought.

Any thoughts MIKE L?

The co-pilot has an internal solenoid valve on the reverse pipe that blocks it off at WOT to prevent main line from drainig off through there. You can not duplicate this with TCM programming.



What do you think Ben? Could it be done by added a solenoid?

It is not that easy just adding a solenoid to the reverse pipe. First of all the aluminum block that houses the solenoid is restricted on the outlet to about .020 so it is always restricting pressure to the gain valves. The reverse pressure is blocking the gain valves from moving so eliminating that pressure allows mainlin to the clutches instead of control main which is restricted mainline. Messing with this setup can and probably will, cost you thousands of dollars in gear damage. Be carefull guys.

i have an 07 lbz and running copilot. i am having some problems with po777 and po700 with copilot on or off. i know it is the copilot system because it happened when the tranny was stock and now has happened with the suncoast V and 1057 tc installed. what i was wondering is can you get as good or better shifts at wot with efilive as with copilot? any help would be appreciated.

thanks,

harleyman

Danny, just hang in there. I told you that I would have it fixed shortly. We have found some things with the new LBZ's that might be causing these issue's.

I'll have some more information for you shortly.

And for all you guys that are trying to copy what the copilot does, You would be suprized what goes into making these things work the way they do. Like Mike said, it's much more than just bumping up some pressure.

The solenoid is what raises the pressure.. to the trans.. It does this by eliminating the balance force on the back of the gain valves. When the pressure is at the gain valve the trim valve won't go as deep in the bore when the solenoid is active. When you don't have pressure there (normally in reverse) the solenoid becomes "stronger" and can push the trim valve all the way down into the bore because it isn't "fighting" the balance force on the back of the gain valve.

Ben It isn't simply dumping line pressure like the mod main solenoid does.

BUT

You can use the DSP2 output to light that solenoid and it will work. I tried it. But you have to use a FET to drive it instead of the PCM. Set A0124 to enable and then use the boost number to also tailor when you want it to come on and set the throttle to make it come on only @ WOT ;)

some other pertinent discussion...... http://www.dieselplace.com/forum/showthread.php?p=1780249#post1780249