Search found 72 matches

by mill3833
Fri May 09, 2014 5:13 am
Forum: MegaShift Transmission Application
Topic: 2nd Gear Start option?
Replies: 17
Views: 18941

Re: 2nd Gear Start option?

That would be great.
by mill3833
Thu May 08, 2014 5:45 pm
Forum: MegaShift Transmission Application
Topic: 2nd Gear Start option?
Replies: 17
Views: 18941

Re: 2nd Gear Start option?

Lance, I understand things are pretty busy right now. I just wanted to put this there as a future enhancement. I didn't wire-up the manual shift buttons, but I see how that would work. My 94 Camaro didn't have the 2nd gear start feature, but 2001 Silverados do. Am suspecting it is something useful i...
by mill3833
Thu May 08, 2014 4:46 pm
Forum: MegaShift Transmission Application
Topic: 2nd Gear Start option?
Replies: 17
Views: 18941

2nd Gear Start option?

Does MSShift have the capability to do 2nd Gear Start like some OEM systems do? What this does is command 2nd gear if the shifter is in M2, regardless of VSS. I know it could be done with the 2nd shift table, but I already have plans for that (Race vs Street trims). During a burnout in the water box...
by mill3833
Wed May 07, 2014 5:33 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

Ok, so I got 4141d loaded and running on the car. Same problem occurs. When shifter is in M3 and it is slapped into M1, Error code 33 is set as well as mGear goes to -99. cGear is stuck at 0. tGear follows the shift map as speed increases and decreases, but cGear is stuck at 0. A power cycle of modu...
by mill3833
Tue May 06, 2014 7:23 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

Lance, My comments about operation was with the 4138 code. I have not tried running the car with the 4141 yet, because of the TS streaming issue. Here is a better explanation of what I saw with the 4138 code. This was with car on jack stands. As long as I moved the shifter relatively slowly, things ...
by mill3833
Tue May 06, 2014 5:10 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

Well, Was able to get the error code 33 to set, and the -99 to happen with the 4138 code and with 0.1V threshold and 2.5V thresholds. Slap shifting does it (moving shifter too quick), and it latches up. So next trying to load up the 4141 code. It loads up and verifies ok. But am having troubles with...
by mill3833
Tue May 06, 2014 3:41 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

I will load it up and try it.

Now that I know I have a sensitivity to the 1V threshold, I can bring that down to 0.1 and prove that it latches-up (with 4.138 code) then switch it to 4.141 and see if it fixes it.

Thanks,

Dave
by mill3833
Tue May 06, 2014 2:42 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

Lance, Thanks for pointing me to the links. Looking at my data, I was pleased to find raw ADin1,2,3 voltages. When the -99 happened, there were some spikes on one of the input that reached above 1v (my V threshold). So am suspecting that. I'll raise that to 2.5 V and will pay attention to mGear on T...
by mill3833
Tue May 06, 2014 12:20 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Re: Shift Target sets to -99 sometimes

Looking closer at the data, yes, mGear does got to -99. 2.5 sec later, tGear goes to -99, which is what I had up on TC real-time. Once mGear goes -99, does something in the code latch, such that a power-cylce is required to clear the fault? So based on this, I'm suspect the A-B-C valve body membrane...
by mill3833
Mon May 05, 2014 5:57 pm
Forum: MegaShift Transmission Application
Topic: Shift Target sets to -99 sometimes
Replies: 21
Views: 22818

Shift Target sets to -99 sometimes

Lance, Sometimes MSShift will set Shift Target (tGear) to -99. So far this seems to happen when I move shifter manually into 1st or 2nd, and then start a roll-out. The attached MSL is from a drive on the street. When it happens, it is stuck in 1st gear for that power-cycle. Cycling ignition (engine ...