Right .. met up with Paul and did a few things .. firstly got the ELM327 USB thingy to talk to his notebook eventually, used it to read and clear the codes 0170, 0173 - Fuel trim malfunction on both banks. As soon as the codes were cleared it misfired badly. Switched off, restarted, ran nicely with no codes.
Plugged in my MS500, this showed 4 "pending" codes - which the ELM327 doesn't do - 0300, 0301, 0302, 0305 - all misfire codes but no misfire present at that time. Cleared them away, system clean.
Took 3 lots of limited live data Idle, 2000 rpm, 4000 rpm results here (may take more than 1 post I guess) :
Idle
Fuelsys1 CL
Fuelsys2 CL
LoadPCT(%) 2.0
ETC 83
SHRTFT1% -1.6 to 0.8 (total range about 1 second steps)
LONGFT1 3.1
SHRTFT2 -2.3 to 0.8 (1 sec steps)
LONGFT2 3.1
RPM 668
VSS 0
ADV -2 to 0 (1 sec steps)
IAT 24
MAF 2.25 to 2.50 (1 sec steps)
TP% 0.8
O2B1S1 0.075 to 0.710 (1/2 sec steps)
SHRTFTB1S1 1.6 to 3.9 (1/2 sec steps)
O2B1S2 0.720 to 0.745 (1/2 sec steps)
O2B2S1 0.110 to 0.640 (1/2 sec steps)
SHRTFTB2S1 -1.6 to 3.1 (1/2 sec steps)
O2B2S2 0.680 to 0.710 (1/2 sec steps)
The only thing that struck me was the differences in B1 / B2 of the last 6 readings ??
Other readings to follow