Scangauge II / XGauge Coding

Following on from this thread
http://www.seatcupra.net/forums/showthread.php?p=1915980#post1915980

bHP Gauge
TXD: 00
RXF: 400080000000
RXD: 0000
MTH: 000A00170000 - for petrol car
MTH: 000A00240000 - for diesel car

Confirmed working - bHP

MAF Gauge
TXD: 686AF10110
RXF: 044145100000
RXD: 2810
MTH: 000100010000

Confirmed working - displayed in g/s

Km/h Gauge
TXD: 686AF1010D
RXF: 0441050D0000
RXD: 2808
MTH: 000100010000

Confirmed working - if you want kilometers per hour displayed with the scangauge set to Miles. Useful for me anyway as speedo is in miles but speed limit here here is in km/h
To take into account any speed calibrations made (-2 seems to be a common setting for the Leons) the MTH function becomes
for -3%=> MTH: 006100640000
for -4%=> MTH: 006000640000
for -2%=> MTH: 006200640000
for -1%=> MTH: 006300640000

m/s Gauge
TXD: 686AF1010D
RXF: 0441050D0000
RXD: 2808
MTH: 001400480000

Works but MTH formating of decimal point in the codes needs sorting, will correct it soon
Calibration factor cannot be taken into account in the calculations

ft/s Gauge
TXD: 686AF1010D
RXF: 0441050D0000
RXD: 2808
MTH: 03BC04190000

Works but MTH formating of decimal point in the codes needs sorting, will correct it soon
Calibration factor cannot be taken into account in the calculations

Km/H - m/s - ft/s -> you cannot display more than one of these at the same time in the gauge function

Set Tank average MPG as a gauge
TXD: 04
RXF: 800000000000
RXD: 0000
MTH: 000000000000

Confirmed working - see manual for more options on this

bHP reading hit 224 for me today. Pretty damn happy with that.
Km/h seems +1 or 2 Km/H above climate control reading. Will verify which is the exact with a sat nav later.

Boost - MAP
TXD: 686AF1010B
RXF: 0441850B0000
RXD: 2808
MTH: 00910064FF71

Confirmed to work on Diesels only - measured in PSI. Does not work on Petrol cars as they do not utilise the MAP sensor PID
When get working set FF71 to 0000. Note reading at idle. take that and get it converted to 2s compliment then change the FF71 to this.


Transmission Temperature
TXD: 686AF10105
RXF: 031A04410505
RXD: 2808
MTH: 00090005FFD8 - to display in Fahrenheit
MTH: 000100010000 - to display in Celcius

Confirmed working

Coolant Temperature
TXD: 686AF10105
RXF: 031004410505
RXD: 2808
MTH: 00090005FFD8 - to display in Fahrenheit
MTH: 000100010000 - to display in Celcius

Confirmed working


Am gonna work on getting Boost working.
Also to get Torque displaying

andy15star said:

Hi,

Loosely related, but the full set of codes you can get on your climate control are at:
http://www.wak-tt.com/tt/climatecontcodes.htm

Andy

Click to expand...

Not correct for Seat
These are
http://lee69.co.uk/Car stuff/Leon/codes.txt

But have no relation to the Scangauge coding

Or your MAF is not reading correctly

2.25g/s and 3.6bhp when idle.
Havent really tried reading the max maf reading as well as the bhp reading when flooring it. Will take a look.

Yeah i plan to look like Im doing work this morning whilst trying to figure out how to work out 2s complement etc for the MTHs function as realised yesterday for the km/h reading it is not taking into account the calibrated speed setting ie. the -3 used.

Anyway, for the MTH 000100010000
0001 (<-Multiply by) 0001 (<-divide by) 0000 (<-add/subtract)

So Im guessing to adjust the km/h reading to a -3 setting
MTH: 00010001FFFD


Will look more into the other conversion later