Does the unit need to stay plugged in to use the lock/unlock lockers in 4hi? Or is this available at all times after the tune is installed? Thanks

have you had a chance to look at this?

mikel wrote:Just saw that, my bad.

Get some logs and post them up.

Here is a log done during some normal around town driving. It was doing the rpm up and down thing near the end of the log. Are there other parameters or another type of log you need?
Thanks

mikel wrote:Have you tried disabling afm to see if that is it?

yes I have the AFM disabled.

U7194 9r18 09 Silverado 5.3 auto

Running Diablo tune with AFM disabled. I have noticed that cruising around 40 or so that the rpms seem to jump up and down rapidly. Not a huge jump in rpms and it doesn't feel like the trans is shifting and there is no increase or decrease in mph. Similar to when ...

12630501 Main
12626751 System
12626738 Fuel
12626789 speedo
12626713 Engine Diagnostic
12631161 Engine Operation
12625892 Slave Operating System
12626692 Engine

I just logged with my U7194 which is on r13. I didn't have any problems. I did notice the "Gas General Short" option was not there so you have to search around the menu to find your options.

r11 worked but couldn't modify parameters. r13 works and can now modify parameters. I'll get the Cal ids later and post them up.

my U7194 works fine on my J motor 09 Silverado. Let me know if there is anyway I can help.

Ok so no parameter modifications with r11 as I explained in my last post. So I restore stock tune to truck and come in to downgrade firmware to r10. DSDownloader seems to do its job with no error messages. When tool reboots I get:

Bottom Boot Test:
U7 Flash *FAILED*
U4 Flash *FAILED*

then when you ...

U7194 rev 9t11b on 09 Silverado 1500 5.3 code J with auto trans. When I try to modify a tune(specifically to disable DOD/AFM) I get a message saying "Parameters not available for this vehicle/transmission combination.(2)"

I'm currently running the 87 octane tune.
Any help would be greatly ...