Flat Shift and 29Q2

2001dodgeneonrt · Post by **2001dodgeneonrt** » Thu Jul 13, 2006 5:22 am

Is anyone using this feature and running it in 29Q2? Myself and a friend both moved to 29Q2 and this feature does not work. It is either always on or always off. Making js11 go low does not trigger it to come on, it just always stays on. Is anyone else having this problem?

Post by **jsmcortina** » Thu Jul 13, 2006 6:22 am

I've used flat shift with 029q2 and 029r and it is working fine for me.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Thu Jul 13, 2006 1:32 pm

JS11 goes Low it is supposed to turn on correct? How do you have the low switch wired? I run a ground switch directly w/o a 5v ref. Could this be causing it?

Post by **jsmcortina** » Thu Jul 13, 2006 1:40 pm

When you say "turn on" what do you expect it to do?

The easy way to test launch and flat shift is as follows.

Set launch rpm limit to 2000rpm
set arming rpm to 1500rpm
set flat shift limit to 3000.

press and hold the clutch (or switch)
press throttle, it should limit at 2000rpm
release throttle and switch
take revs to 2700
activate switch
press throttle, it should limit at 3000rpm

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Thu Jul 13, 2006 4:06 pm

After reading the launch control page I realize i need to take it off the clutch switch. I will remove it and see if it is staying grounded. For launch control to be disengaged does it need a high signal? The way it iwired up there is only a low switch with no high, would this cause launch control to always be engauged?

Post by **jsmcortina** » Thu Jul 13, 2006 4:36 pm

Check the "indicator" on the Megatune front screen to see.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Fri Jul 14, 2006 5:59 pm

After testing further the "flat Shift" indicator is staying on solid regardless of my efforts to change the state. With the MS powered but car not running it works proper, indicator stays off and will turn on when it goes low. Upon cranking the indicator goes low and stays there while running. The switch is not hooked up to the clutch anymore as it is hanging free with no signal right now, only time it gets signal is when I ground it by hand for testing purposes. Any clues? BTW my friend and I are both running the neon/420 code. If you need logs or my msq they are available upon request. Thx for the help james.

slow_hemi6 · Post by **slow_hemi6** » Fri Jul 14, 2006 9:46 pm

Without a pullup to ref how can the pin ever be in a high state? I don't have the 908 datasheet here but unless the pin is manufactured with a software configurable weak pullup internaly,you cant expect it to be at a high state.
If this is the case your pin is allready low and switching to ground is not changing the state of the pin and releasing the ground is not either.It is always in the low state.

2001dodgeneonrt · Post by **2001dodgeneonrt** » Sat Jul 15, 2006 3:28 am

So the missing 5v pullup is the culpret? I will wire in a high and see if this fixes my delema. TY for the help.

slow_hemi6 · Post by **slow_hemi6** » Sat Jul 15, 2006 11:01 pm

Just had a look at the diagrams suggested on the extra site and both have pullups to the pin.Direct has 2k2 and transistor switched has 470ohm.No pullup will be your problem.

2001dodgeneonrt · Post by **2001dodgeneonrt** » Sun Jul 16, 2006 10:20 am

I will try it out today!! Thx for the help

2001dodgeneonrt · Post by **2001dodgeneonrt** » Wed Jul 19, 2006 5:58 am

well i put a 5v pullup on there and I killed my MS CPU. Realtime displays 29.88 V at all times. My friend verified its the firmware as he loaded his 25v2 and flat shift worked, then loaded 29q2 with no changes and it does not work. Flatshift stays on. any other ideas?

Post by **jsmcortina** » Thu Jul 20, 2006 2:08 am

I am using flat shift on 029q2 and it works fine. I am using the clutch switch (to ground) and pullup.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Mon Jul 24, 2006 4:24 am

well we have both confirmed its something in the code cause if we go back to 25v2 it works fine. I tried the pullup and it fried my cpu. I imagine that is my fault somehow and as soon as I get back home I am going to look into it further. Only thing we are doing diffrently from u james is using neon decoder. Could there be something wrong in the neon code???

Post by **jsmcortina** » Mon Jul 24, 2006 4:37 am

2001dodgeneonrt wrote:well we have both confirmed its something in the code cause if we go back to 25v2 it works fine.
Could there be something wrong in the neon code???

The flat shift code should be totally independant to the Neon code as it can work in any ignition mode.
Have you verified you hard cut/limiter settings are right? I think the dialogue may have changed between 025v2 and 029q2.

I tried the pullup and it fried my cpu.

How?
What are the symptoms of the "fried" cpu.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Mon Jul 24, 2006 10:23 am

2001dodgeneonrt wrote:well i put a 5v pullup on there and I killed my MS CPU. Realtime displays 29.88 V at all times. My friend verified its the firmware as he loaded his 25v2 and flat shift worked, then loaded 29q2 with no changes and it does not work. Flatshift stays on. any other ideas?

those are my symptoms of the fried ecu. Have another cpu sitting at home waiting for install. As far as the flatshift set rev limits regardless of the limits the flatshift indicator stays on solid once car is running. When car is in aux mode (only power on) it works properly. I have tested this part with a bare wire to a ground and touched them together to eliminate any switches. As soon as I crank the car over the flat shift indicator goes solid. For both my friend and I. We also both tested 25v2 and same setup the flatshift does not turn on till it is grounded. I am stumped, I like 29q2 and the layout but I like flatshift alot as well. Any help would be greatly appreciated!!!

Post by **jsmcortina** » Tue Jul 25, 2006 1:51 am

How did you get your settings into 029q2? I'm wondering if the MSQ is scrambled somehow. Try doing a "review" of all the Megatune settings to check for unwanted stuff being enabled by accident.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Tue Jul 25, 2006 4:22 am

Im not real sure what you mean? Its supposed to be off by default and it is, and works fine if the car isnt running. This is true for both my friend and I. As soon as I start the car it goes low and stays there, same with my friend. Do you want me to do a blank setup and see if the problem still occurs?

Post by **jsmcortina** » Tue Jul 25, 2006 4:26 am

2001dodgeneonrt wrote: Do you want me to do a blank setup and see if the problem still occurs?

Yes.
If you could load in the default MSQ, import your VE and spark tables and manually apply the settings this will at least confirm that there isn't a peculiar MSQ issue to blame.
Like I say, launch and flat shift are 100% working for me as I've made say 20 passes down the strip with this code using launch on every launch and flat shift on every change.
The commentator commented that they could "use my car to scare the pigeons on a farm" as it sure goes bang at each shift.

James

2001dodgeneonrt · Post by **2001dodgeneonrt** » Tue Jul 25, 2006 4:28 am

will do, I get back in town tomorrow and I will do that first thing. Thx for the help.