Torque Pro Missing PID's for Transmission Temp Guage .... and others

Larrylu · February 26, 2014, 10:51:36 PM

Quote from: ecoboostsho on February 26, 2014, 10:10:27 PM
Quote from: Larrylu on February 26, 2014, 07:13:47 AM
I've been looking for some way to buy the PID's. Haven't fond a thing. Aeroforce has them so they must be available but where and for how much. Too bad we are stuck here trying to re-invent the wheel. If the 22 degree discrepancy is constant the formula could be tweaked, but I'm worried we might be getting the temp for an unrelated sensor.
Well unless you have thousands (or even 10's of thousands) of dollars I don't think you'll be able to buy the PIDs. If you did manage to buy them I'm pretty sure Ford will not allow you to distribute them publicly via a legal agreement. I can understand why they wouldn't make certain PIDs available but the ones that are read only shouldn't matter to them...

I found some prices and I see what you mean. No wonder these PID's are not floating around. Realistically we will be lucky to stumble onto a clue here or there. It's a shame it's so tough.

Larrylu · February 26, 2014, 11:45:51 PM

Quote from: FoMoCoSHO on February 26, 2014, 10:41:33 PM
How bout this?

ecoboost show is the only one who would know if this has some gold to mine in it but it does look promising. I can't wait to see what he thinks of this material. Good find I think!

Mac98SHO · February 27, 2014, 01:19:06 AM

wish there was a way to have Forscan list PID addresses

ecoboostsho · February 27, 2014, 08:40:27 AM

I was actually hoping to find the time to build a serial port sniffer (you can buy monitor programs but you almost have to split the wires to truly get at the port). If I could do that then I could see exactly what certain programs (that work) were requesting by just selecting one parameter (PID) at a time and then reverse engineering the data stream. It would not be easy...It wouldn't give us the equation but at least we'd have the PID for a couple of key parameters.

ecoboostsho · February 27, 2014, 08:41:51 AM

Quote from: 4DRHTRD on February 25, 2014, 12:39:40 PM
I would suggest we make a .csv file for people to be able to easily import these value:
http://priuschat.com/threads/gen2-prius-custom-pids-for-torque-android-app-with-formulas.95370/

I will do this once we have something worth putting in the .CSV file. Thank you for posting it.

ecoboostsho · February 27, 2014, 08:44:21 AM

Quote from: FoMoCoSHO on February 26, 2014, 10:41:33 PM
How bout this?

The first document you posted (Thank you for helping!!) is interesting from the standpoint that it gives us a pretty good idea of the "universe" of available parameters however it isn't terribly helpful for figuring out the PIDs. I need the hex string to do that...now this document does have many of them but a quick glance says they look like the older known PIDs that are either already built in to Torque or known elsewhere. I will do a deep dive on them when I have some time and sample a few to see if they will work in Torque. Thanks for finding them!

skippytx · April 30, 2014, 04:32:09 PM

First off you guys are awesome for figuring this out. I found a different formula that seems to work a little better on another website.

I've been using (((signed(A)*256)+B)*(9/8)+320)/10 and it's showing a more realistic temp. I got in the car the other day and the one posted earlier was showing below ambient temp outside, which at 4PM in the afternoon didn't seem plausible. This one is running 20 to 30 degrees higher on my Torque app. This morning it

The top right in this picture is the above formula, the one under it is ((signed((A*256)+B))*(9/80)+32) (maybe I put this in wrong???)

ecoboostsho · April 30, 2014, 04:53:18 PM

I have been trying to figure this out for some time and agree the previous formula wasn't scaling correctly. I am definitely going to try the other formula you mentioned and I will let you know the results. I've been seeing some variations in temp compared to FORSCAN and it has been driving me crazy! The formula that I deduced has to be wrong at this point OR this really isn't transmission temp. I will try your formula and will compare it to Forscan to see how close it is.

Larrylu · April 30, 2014, 07:20:48 PM

Hey guys, math is not my strong suite, but in both formulas shouldn't the number of open parentheses and closed parentheses match up? Also in the new formula, in the second part I'm showing (9/smiley face+320)/10. What am I supposed to really be seeing or is this some new math? LOL

2010 Steel Blue Metallic, Fully Loaded, non PP, LMS 4+, K&N drop in, 170 T-stat, 3 bar MAP

EcoPowerParts · April 30, 2014, 07:35:08 PM

Since LMS is tied directly in with Ford it would be nice if they could share some of the PID and calculations with us. Just a matter of asking one of the Ford Engineers for the info.

glock-coma · April 30, 2014, 07:48:21 PM

I thought the original formula you put up was accurate.
My ambient air temp and transmission temp are very close on startup. You can see in my lowest value in ambient air and trans temp this was on startup after sitting all night.

2010 RCM non PP
K&N panel filter
sp534 @ 30
unleashed 93 performance+boost
more to come.....

ecoboostsho · April 30, 2014, 10:09:52 PM

I agree and I saw the same thing regarding the starting temp...however that was only at very low temps. As the trans temp rises I was seeing some pretty big discrepancies (20-30 degrees too high according to Forscan). That means the "slope" of the equation was wrong. I tried mapping it out but fixing one end meant the other would get screwed up and I was getting fairly frustrated. I will check the most recent formula with Forscan and see how close it matches.

Larry - Your browser/device must be converting it to a smiley face. Here is the formula with a bunch of spaces that will hopefully help. Just delete the spaces.

((( signed(A)*256) + B ) * ( 9 / 8 ) + 320 ) / 10

SwampRat · April 30, 2014, 10:36:11 PM

Quote from: 4DRHTRD on April 30, 2014, 07:35:08 PM
Since LMS is tied directly in with Ford it would be nice if they could share some of the PID and calculations with us. Just a matter of asking one of the Ford Engineers for the info.

I'll ask them when I go ... what other PIDS for the whole platform / years do we need ?

Larrylu · April 30, 2014, 10:45:52 PM

Quote from: ecoboostsho on April 30, 2014, 10:09:52 PM
I agree and I saw the same thing regarding the starting temp...however that was only at very low temps. As the trans temp rises I was seeing some pretty big discrepancies (20-30 degrees too high according to Forscan). That means the "slope" of the equation was wrong. I tried mapping it out but fixing one end meant the other would get screwed up and I was getting fairly frustrated. I will check the most recent formula with Forscan and see how close it matches.

Larry - Your browser/device must be converting it to a smiley face. Here is the formula with a bunch of spaces that will hopefully help. Just delete the spaces.

((( signed(A)*256) + B ) * ( 9 / 8 ) + 320 ) / 10

Thanks for the formula replay. Came through fine with the spaces. I will give it a try tomorrow. I hope it tests out well for you.

2010 Steel Blue Metallic, Fully Loaded, non PP, LMS 4+, K&N drop in, 170 T-stat, 3 bar MAP

Larrylu · May 03, 2014, 12:23:32 PM

Ecoboostsho I have run this new tranny temp formula for a couple of days and my observation so far is that the over night cool temp readings seem to be lower than what I would guesstimate. For example outdoor ambient of 40 degrees and my garage is 10 degrees warmer the start up tranny temp reading was low 30's. The even progression upward during operation seems good with a high reading of 153 degrees after about half hour of interstate cruising. Of course I have no idea what it should be reading but seems reasonable.

2010 Steel Blue Metallic, Fully Loaded, non PP, LMS 4+, K&N drop in, 170 T-stat, 3 bar MAP