Just need someone to purchase one and I can get the output. According to their forum page
VEMS only spills it's beans when asked to by sending an "A" (0x41)
It then sends back 48 binary bytes which is the following data :-
Some vales are 2 byte (16 bits) like mapADC.
secl = scalar, U08, 0, "sec",
squirt = scalar, U08, 1, "bits",
engine = scalar, U08, 2, "bits",
barometer = scalar, U08, 3, "ADC",
mapADC = scalar, U16, 4, "Pa",
matADC = scalar, U08, 6, "ADC",
cltADC = scalar, U08, 7, "ADC",
tpsADC = scalar, U08, 8, "ADC",
batADC = scalar, U08, 9, "ADC",
egoADC = scalar, U08, 10, "ADC",
egoCorrection = scalar, U08, 11, "%",
airCorrection = scalar, U08, 12, "%",
warmupEnrich = scalar, U08, 13, "%",
rpmVHR = scalar, U16 14, "rpm",
pulseWidth = scalar, U08, 16, "ms",
accelEnrich = scalar, U08, 17, "%",
baroCorrection = scalar, U08, 18, "%",
gammaEnrich = scalar, U08, 19, "%",
veCurr = scalar, U08, 20, "%",
INTdwell = scalar, U08, 21, "mS",
NTspark = scalar, U08, 22, "",
iacPos = scalar, U08, 23, "%",
egt1ADC = scalar, U16, 24, "Deg",
egt2ADC = scalar, U16, 26, "Deg",
ebpADC = scalar, U16, 28, "Deg",
pADC = scalar, U16, 30, "Deg",
misc1ADC = scalar, U16, 32, "Deg",
misc2ADC = scalar, U16, 34, "Deg",
misc3ADC = scalar, U16, 36, "Deg",
misc4ADC = scalar, U16, 38, "Deg",
latgtADC = scalar, U08, 40, "",
knock_cyl_0_knock_val =scalar, U16, 41, "",
knock_cyl_0_noise_val =scalar, U16, 43, "",
knock_cyl_0_adjust =scalar, U08, 45, "Deg",
knock_cyl_0_state = scalar, U08, 46, "",
status1 = scalar, U08, 47, "",
That still doesnt give me the baud rate or parity to connect with but is a start. Would need some sample output to code it up