OBD2 Diagnostics on the cheap with Android

[Woodchukka]

I've got it in my head that for a VY the GM oil pressure PID does not work. For EFILive the oil pressure is a calculation that uses the oil pressure sensor voltage. I've had a bit of a search online and can't find the info however I believe the reason why the gauge in Torque doesn't work is that the ecm doesn't ever convert the voltage to a pressure reading. I don't have my dongle (brother in law has it) so I can't even go out and check.

Just found this now from earlier in this thread from Swingtan

"The data for specific PID's is dependent directly on the OS inside the PCM/ECM and requires specific code to get the data. This is not always supported and in cases like the "ODBII Scan Gauge" used by a few here, may not work ever. It's known that custom tunes performed by the HPT suite caused a few of these gauges to stop reporting certain PID data."

[white lie]

I've got it in my head that for a VY the GM oil pressure PID does not work. For EFILive the oil pressure is a calculation that uses the oil pressure sensor voltage. I've had a bit of a search online and can't find the info however I believe the reason why the gauge in Torque doesn't work is that the ecm doesn't ever convert the voltage to a pressure reading. I don't have my dongle (brother in law has it) so I can't even go out and check.

Just found this now from earlier in this thread from Swingtan

"The data for specific PID's is dependent directly on the OS inside the PCM/ECM and requires specific code to get the data. This is not always supported and in cases like the "ODBII Scan Gauge" used by a few here, may not work ever. It's known that custom tunes performed by the HPT suite caused a few of these gauges to stop reporting certain PID data."

Interesting that the tune can stop it working.
Got me curious now as to why it works with my gauges and possibly not in torque. I'll have a play this afternoon but if it is as ST says then it may be vehicle/tune dependant anyway

[tascalais]

What is the setup for your aeroforce gauges?
My car has been tuned by pwrls1 before I got it. Perhaps that is why I can't get oil pressure?

>>>tappin from tassie

[white lie]

They're purely plug and play. Never had to alter the PID's in them. I'll set up torque this afternoon and see if it works straight up. Like you say, may be something in the tune that throws it out.

[white lie]

Just played around with Torque a few PID's from browsing other forums. This one seems to work and is within 1-2PSI of what my Aeroforce gauges were saying. The 'standard' PID didn't work as well as a few others that I tried.

Add in a custom PID

PID in hex - 22115c
Long Name - call it whatever you want (I just called it Oil Pressure since the one in the pack is Oil Pressure Engine)
Short Name - Oil Press (again, whatever you want to show up in the gauge/display)
Min - 0
Max - 100
Scale Factor - x1
Unit Type - PSI
Equation - (A*0.65)-17.5
OBD Header - Auto

Then just add the display like you normally would.

[tascalais]

Cheers mate! Will give it a try

>>>tappin from tassie

[tascalais]

I just got around to trying the custom oil pressure PID. Seems to be working fine. Thanks again white lie!
I'll be able to watch it on the commute home this evening and see how it's behaving.

>>>tappin from tassie

[white lie]

No worries

[muli]

Bloody legend, worked for me as well on torque

LG-H815

[tascalais]

Ok, next question! I'm now trying to check if my fuel gauge is working as the needle got stuck on 3/4 and won't cone down. I brought up the guage (in torque) called: fuel level (from engine ecu) but it's saying no data. Can you point me in the direction of the custom PID info you found white lie? What a coincidence that the first two PIDs I've needed from torque have a big fat "no data" lol.
....or alternatively, can anyone point Mr in the direction of a fuel gauge trouble shooting thread?

>>>tappin from tassie

[white lie]

You should just be able to put the dash in diagnostic mode to give a readout of the fuel level voltage or litres remaining? Can't remember what it gives you but there should be something in there

Tried wacking the top of the dash? Always used to work when my VP-VR fuel gauges got stuck lol

[tascalais]

Lol yeah I whacked the dash first. (that's my level of trouble shooting!). Being a calais, I have the three window display and therefore fuel use, distance remaining etc but the distance remaining is stuck the same as the gauge needle.

>>>tappin from tassie

[macca_779]

Lol yeah I whacked the dash first. (that's my level of trouble shooting!). Being a calais, I have the three window display and therefore fuel use, distance remaining etc but the distance remaining is stuck the same as the gauge needle.

>>>tappin from tassie

Sounds like a sender issue not a dash one

[ATOMIC MALOO R8]

i have a kiwi 3 and doesent work with wifi

[ATOMIC MALOO R8]

i have a kiwi 3 obd11 dongle and it doesent work with wifi on a S160 android ? , or blue tooth ? all so have a elms327 mini clone witch works now again it .
all works fine on my android note 8 though i would have thought there would not be much difference between Android ver 4,2.4 (note 8 ) and the S160 ver 4.4.4
im thinking of going to a USB wired dongle and connect it to the S160 in dash unit , so i can have all the gages up on the indash 8" screen and flick beetween GPS and gages Torque Pro is quite good for $5 if you load the external pids for your car
or put some custom pids in ( if you can find them ) Torque scan is a good plugin as it shows what pids are working and what dont ,the raw values is displayed beside the pid straight of the screen so you dont need a gage just for a quick look (simlar to efilive )

i only use it to show gages with TFT ,ECT ,boost ,Volts, AAT , IAT , Baro, rail presure , and couple of others in my PX ranger when im towing

lots of obd 11 dongles wont read differant phones and some conect and wont read the ecu ,and the cheap one i have only reads half the pids the $170 PLX kiwi3 reads

im just disappointed that the S160 wont read it ,and i have up dated the soft ware in the kiwi3 any ideas about the hard wire with the usb ? the S160 is compatable with WIFI/ BT /USB im thinking the low energery or BT 4 is the problem with the kiwi3 to S160