ScanGauge not displaying fuel flow, IGN

What firmware rev is yours? IGN works for me and IIRC, LP does too.

I don't bother w/any of the fuel mileage measurements like MPG. Why do I need yet another thing that estimates mileage and it's one that I need to calibrate, to boot? I already have the MFD and my manual calculations.

 

Wise man thinks the same.

Maybe e-mail the vendor for suggestions? Good luck!

 

Hi Ivan,

You are not alone, I've the same problem on my Gen1.

It seems that different regions have different OBD standard supported, I think ours are different from US or Europe. To find out which OBD std is supported, you can send the followings in CMDS:

	Column 1	Column 2	Column 3
0	CMDS	Response
1	011C
2	07E0011C

It may also be possible to get IGN indirectly (not tested):

	Column 1	Column 2	Column 3
0	CMDS	Response
1	07E0010E

If you manage to get response for the above, I can help to create an Xgauge for that.

 

Thanks for trying! What I'm trying to find out is whether the physical addressing work (07E0 is for ECM). The other addressing mode is for functional (01xx, mode 01, PID xx).

For the latter, any ECUs that support that PID will response. For your e.g. engine coolant temp., the HV ECU also has the same PID 05. So, even if ECM didn't response, you would still get 41055A from HV ECU. To find out whether it was from the HV ECU, you can try 07E20105.

I don't think you can use 010E although you got readings. It could be coming from any ECU, e.g. steering, brake, ABS, etc. You can only use if it is unique, ie. only 1 ECU has that PID.

I searched the web and found this:

XGauge (CAN-bus) for Dummies... - Page 2 - CleanMPG Forums

I've not understand how that works but if you decide to try, pls report back if it works or not.

 

I stand corrected. You're right that 07E0XXXX codes don't work in CMDS. SGII will automatically append 0x07DF and the length byte to the front and a CRC byte to the end.

X-Gauge: Sending an arbitrary CAN command via SG - CleanMPG Forums

So, to find out which ECU(s) responded to 010E, you need to use Xgauge.

	Column 1	Column 2	Column 3	Column 4	Column 5	Column 6	Column 7
0	XGauge	TXD	RXF	RXD	MTH	NAME	Notes
1	Test	07DF010E	0441150E	0010	000100010000	ecu	should see 0x07Ey where y is a number

 

07EA is a response from 07E2 (Hybrid Vehicle ECU).
07E8 is a response from 07E0 (Engine Control Module).
07EB is a response from 07E3 (HV Battery ECU).

IGN is usually from ECM, that is why SGII displays blank.
I don't know what is the PID$0E for HV ECU. If you want to find out, you can try this:

	Column 1	Column 2	Column 3	Column 4	Column 5	Column 6	Column 7
0	XGauge	TXD	RXF	RXD	MTH	NAME	Notes
1	Test 0E	07E2010E	02EA0441050E	2808	00010002FFC0	t0e	a number

If you see the numbers are from -10 to 19+, that could possibly be IGN.

My Gen1 uses KWP2000 and not CAN, that is why I can't test it first. Most of the info. are from Google and I learn a lot about CAN as I search for info.

 

Hi Reed,

I have exactly the same problem with my Australian Prius. Linear Logic told me it is an OBD2 incompatibility. I think it is between within country regions. The American/european prius is different in many ways to the Asian prius (the healights squint a bit more - joke). Until I found your thread I had given up on it. I had put my thread of this same problem on the Enginer forum - no replys from anybody with a clue as to why.

 

I use mine to read the SOC, Bta, Gas(fuel gauge) and RPM. I am waiting for an Enginer Kit to see the improved differences before and after the Enginer Conversion 4KWH kit.

 

I found that by changing the CAN id in the TXD of 07E0 to 07E2 I got some of my xgauges to work that did not previously work (showed up as blank) such as Aat, Cet, Cti. This might help you. Maybe Vincent could explain to us why?