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Is there a way to get the scanned parameter PID ? basicaly im using a third party application to monitor engine sensor, but i need gm specific pid to get thing like oil pressure evap pressure, current gear... they are nowhere to be found but hp tuner does have them codded somewhere since we can datalog almost everything in the scanner...
No! That would be like McDonalds making their french fry recipe public. I wont comment on how HPT acquires the PIDs, but I've figured out many GM PIDs with the conversion factor for my own personal use (Live Stand Alone Dash Display), but there are Many EVAP PIDs. I guessed on the one below.Quote:
Originally Posted by jimcarrier
You will have to request most of these.
Oil Pressure: $1470, 1 byte, 0 to 1020 kPa, N * 4
EVAP Leak Check Pump Absolute Pressure: $235F, 2 bytes, 0 to 120 kPa, N * 120 / 65535
Gear: $28E8, byte 1:
$00 Neutral
$01 First Gear
$02 Second Gear
$03 Third Gear
$04 Fourth Gear
$05 Fifth Gear
$06 Sixth Gear
$07 Seventh Gear
$08 Eighth Gear
$09 Ninth Gear
$0A Tenth Gear
You would need to sniff the canbus and see what HP tuners is requesting. It sounds easy but when you see a data stream you might think again.