Hi all, just thought I'd share my experience with using Torque Pro on an Android device to display auto transmission temps.
I'm using a Joying 5.1.1 double DIN head unit, which so far I'm reasonably happy with. Torque Pro came preloaded on it. I ordered an ELM327 OBD2 Bluetooth adapter with the head unit. The first one didn't work properly, and after a few emails back and forth Joying sent me another one, which so far is working fine. I have to say I've been reasonably impressed with Joying's desire to offer good customer service. They're not always that easy to understand, but they seem very anxious to be helpful, and usually respond fairly quickly.
So I've got a 2008 D4D 120 GX auto. The info on the interwebs wasn't always that clear on which formulas to use for the custom PID's for auto trans temps. Eventually, after trying several versions, this is what worked for me:
Auto Oil Pan Temp:
OBD2 Mode and PID: 21D9
Long Name: Automatic Transmission Oil Pan Temp (or whatever else you'd like to call it)
Short Name: ATF Pan Temp (or whatever else you'd like to call it)
Minimum Value: 0.0
Maximum value: 120 (or whatever other value you'd like for the top temp on the gauge. Some threads suggest 160, but I've got no intention of letting my tranny get that hot)
Scale factor: x1
Unit Type: C (for Celsius)
Equation: (((((E*256)+F)*(7/100)–400)/10)-32)*(5/9)
OBD Header to use: left blank
Auto Torque Converter Temp:
OBD2 Mode and PID: 21D9
Long Name: Automatic Transmission Torque Converter Temp
Short Name: ATF TC Temp
Minimum Value: 0.0
Maximum value: 120
Scale factor: x1
Unit Type: C
Equation: (((((G*256)+H)*(7/100)–400)/10)-32)*(5/9)
OBD Header to use: left blank
This is what worked for me. There are some threads around that suggest a PID of 2182 instead of 21D9, and some threads have A/B or C/D in the formulas instead of E/F and G/H. Couldn't make it work with those.
When you're driving along you'll observe that the TC temp varies a lot more quickly then the pan temp, especially when accelerating, going up hill, or using the gears for engine braking. When you return to flat steady speed driving the TC temp usually equalises to the pan temp quite quickly.
Hope that's helpful to someone :-)
Tim
I'm using a Joying 5.1.1 double DIN head unit, which so far I'm reasonably happy with. Torque Pro came preloaded on it. I ordered an ELM327 OBD2 Bluetooth adapter with the head unit. The first one didn't work properly, and after a few emails back and forth Joying sent me another one, which so far is working fine. I have to say I've been reasonably impressed with Joying's desire to offer good customer service. They're not always that easy to understand, but they seem very anxious to be helpful, and usually respond fairly quickly.
So I've got a 2008 D4D 120 GX auto. The info on the interwebs wasn't always that clear on which formulas to use for the custom PID's for auto trans temps. Eventually, after trying several versions, this is what worked for me:
Auto Oil Pan Temp:
OBD2 Mode and PID: 21D9
Long Name: Automatic Transmission Oil Pan Temp (or whatever else you'd like to call it)
Short Name: ATF Pan Temp (or whatever else you'd like to call it)
Minimum Value: 0.0
Maximum value: 120 (or whatever other value you'd like for the top temp on the gauge. Some threads suggest 160, but I've got no intention of letting my tranny get that hot)
Scale factor: x1
Unit Type: C (for Celsius)
Equation: (((((E*256)+F)*(7/100)–400)/10)-32)*(5/9)
OBD Header to use: left blank
Auto Torque Converter Temp:
OBD2 Mode and PID: 21D9
Long Name: Automatic Transmission Torque Converter Temp
Short Name: ATF TC Temp
Minimum Value: 0.0
Maximum value: 120
Scale factor: x1
Unit Type: C
Equation: (((((G*256)+H)*(7/100)–400)/10)-32)*(5/9)
OBD Header to use: left blank
This is what worked for me. There are some threads around that suggest a PID of 2182 instead of 21D9, and some threads have A/B or C/D in the formulas instead of E/F and G/H. Couldn't make it work with those.
When you're driving along you'll observe that the TC temp varies a lot more quickly then the pan temp, especially when accelerating, going up hill, or using the gears for engine braking. When you return to flat steady speed driving the TC temp usually equalises to the pan temp quite quickly.
Hope that's helpful to someone :-)
Tim
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