Digital Gauge Software

**asmpbm** · 10-21-2008, 08:21 AM

Originally Posted by allypally

These are really good guages, and I have installed them into my Ford. Naturally the dials require modification to get accurate figures, and I am slowly working through these to set them for my car.
However, only some of the guages are actually getting readings from my DashXL, so it appears that the PID's required are either not present or not switched on.
This is where I am having problems. For example, the above guage, which records fuel level, appears to call for a PID called SAE.RPM. I was under the impression that PID was for a Tacho, so was a little confused why it would be recorded as the OBD-11 value in the settings.
Can anyone shed light on this?
Does the PID need to be recorded in the dashboard object view, or the script?

The Fuel Level gauge call for SCRIPT.FUEL PID, not SAE.RPM, you can see it on DashBoard Editor, Select last Layer -> Container (FUEL LEVEL) -> Contanier (blue) -> Needle, there you will see PID = SCRIPT.FUEL, and if you select Select last Layer -> Container (FUEL LEVEL) -> Contanier (black) -> Text you will see PID = SCRIPT.FUEL too.

You have to modify SCRIPT.FUEL in PCMSCAN Script Editor, and change var FuelTankCapacity = 61, for var FuelTankCapacity = <YourTankCapacity>, and you must enable SAE.FLI PID

With all that it should work.

**Custommx3** · 10-21-2008, 08:50 AM

I thought Dashcommand doesnt support scripts?

**asmpbm** · 10-21-2008, 09:06 AM

Originally Posted by Custommx3

I thought Dashcommand doesnt support scripts?

No, DashCommand dont support scripts yet, but PCMSCAN do

**allypally** · 10-28-2008, 05:47 AM

Thankyou asmpbm. Your info helps a little. I can see those entry points and I have even updated the guage to display my fuel tank capacity from what was there. I still connot get the guage to function, but I will persist and see what else is going on.
I have so far managed to get about 50% of those GTR guages to work.

**BlueOvalMacMech** · 10-31-2008, 08:43 PM

hopefully this wont be construed as a thread hijack, but are there any front ends that work with standalone senders rather than obd2? the reason i ask is because i have an 83 tbird, and currently it is eec-iv or v (i forget), and while i am doing a great deal of work making a fairly modern car out of it, i dont know yet if i will install an obd2 harness.

as it sits, i am planning on installing a 5.0 from a 97-02 explorer (better metal content, plus they come stock with the gt40p topend, breathes much better), and i'm not yet sure how i will go about the rest. i might install the obd2 harness from the donor, or i might do a standalone system. as such, i'd be interested in software that isnt dependant on obd2.

also, along the same lines, where would i get the interface for the sensors to the pc?

**alz0rz** · 11-01-2008, 12:51 AM

asmpbm, how are you determining the gear the car is in (rx8)?

the rx8 does not have a physical transmission sensor although the ecu does change fuel maps based on gear the obd2 doesn't report it.

also the rx8 obd2 does not report fuel flow.. how are you determining that?

and lastly the throttle position sensor on rx8 ecu tops out for some reason at 78%.. what did you do to report a true 100% on your "accel pedal" display?

**asmpbm** · 11-01-2008, 07:45 AM

Originally Posted by alz0rz

asmpbm, how are you determining the gear the car is in (rx8)?

the rx8 does not have a physical transmission sensor although the ecu does change fuel maps based on gear the obd2 doesn't report it.

It's difficult to explain in detail but is calculated with a script based, on RPM, VSS, wheel size, gear ratios and differencial gear ratio.
With all theses information I can calculate what it the actual gear ratio car is in, and with that calculated gear ratio I can match current gear.
The best efficient gear its calculated based on actual gear, RPM, and VSS, and a little bit of knowledge and experience about how RX-8 behave in every gear.

Originally Posted by alz0rz

also the rx8 obd2 does not report fuel flow.. how are you determining that?

Fuel flow its calculated based on SCRIPT.FUEL_FR developed by PCMSCAN people. I change only a few things to show data in l/100km (liters per 100 kilometres)

With instant fuel flow and vehicle average speed I can calculate average fuel consumption and fuel economy. It just do the math.

Originally Posted by alz0rz

and lastly the throttle position sensor on rx8 ecu tops out for some reason at 78%.. what did you do to report a true 100% on your "accel pedal" display?

That happens because you are using SAE.TP and it tops at 78%. You have to use SAE.TP_R to reach 100% o "accel pedal"

**asmpbm** · 11-01-2008, 07:49 AM

Originally Posted by allypally

Thankyou asmpbm. Your info helps a little. I can see those entry points and I have even updated the guage to display my fuel tank capacity from what was there. I still connot get the guage to function, but I will persist and see what else is going on.
I have so far managed to get about 50% of those GTR guages to work.

You have to enable SAE.FLI pid to get Fuel Level gauge working