Torque Pro Missing PID's for Transmission Temp Guage .... and others
- Thread starter kbeck59
- Start date
ecoboostsho
New member
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
New member
I will do this once we have something worth putting in the .CSV file. Thank you for posting it.4DRHTRD said:
ecoboostsho
New member
FoMoCoSHO said:
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!
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???)
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
New member
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.
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
2010 Steel Blue Metallic, Fully Loaded, non PP, LMS 4+, K&N drop in, 170 T-stat, 3 bar MAP
glock-coma
New member
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.....
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
New member
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
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
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
2010 Steel Blue Metallic, Fully Loaded, non PP, LMS 4+, K&N drop in, 170 T-stat, 3 bar MAP
ecoboostsho
New member
So I finally got a chance to check the new Torque formula and it seem to match Forscan +/- a couple of degrees. I tested it at 150 and 200 and it was very close both times so this new formula seems more accurate. I honestly didn't test it at startup which was a miss on my part because I would like to know if it is off down low or not. The good news is that this one seems to be accurate where it matters...at the upper end of the range...at least compared with Forscan. The only way to really know I guess would be to compare it to an actual gauge and temp sensor. I am going to update the original post as well to hopefully avoid confusion.
glock-coma
New member
I'll change to the new equation later today and post some results.
ecoboostsho
New member
Went and tested the PID with Torque and Forscan after letting the car sit overnight...
Ambient 75 Deg. F
Torque with latest formula: 79 Deg. F
Forscan: 79 Deg. F
I think we have a winner!
Larry - what speeds were you running and what was the ambient temp at the time. Mine will consistently hit the 200-210 mark on the highway at 75-80mph with a ambient temp of 85 deg...
Ambient 75 Deg. F
Torque with latest formula: 79 Deg. F
Forscan: 79 Deg. F
I think we have a winner!
Larry - what speeds were you running and what was the ambient temp at the time. Mine will consistently hit the 200-210 mark on the highway at 75-80mph with a ambient temp of 85 deg...