do you have the ability to clear all fuel adaptations with the solus ?

also in eobd do the fuel trims match those in the vauxhall side ??

p0170 is a lean condition, so when faced with this i like to go on a test drive and graph the front o2 sensor and TPS , you can do this with the souls .

if the o2 voltage goes low when you floor it to the red line in second gear, then you know you do have a lean condition, if the voltage goes high, then you have a rich condition (as you should when you nail it).

use the TPS data PID to know when you nailed it.

have a look when p0170 sets for freeze frame data in EOBD or the vauxhall side to know what conditions set the code , you will find some valuable data in there.

For whats it worth, if the o2 voltage goes low on the test drive , FUEL PUMP, FUEL Filter, Injectors, Start with a fuel pressure gauge and go from there , Vauxhall supply a valve on the rail.

Happy hunting.