Is it fuel lift pump or fuel injection pump problem?

[sky2you]

It is bad fuel lift pump.
I have checked inlet fuel line of fuel filter and turn key on and see if there is any pressure, also I have touched the fuel lift pump which is located behind ECM cooling plate on ISB engine, to see if it is running when turn key on, too. Both test results are failed so it is bad fuel lift pump.

After replace the fuel lift pump, the problem is fixed, no more 128 094 fault code anymore.

Thanks for your help.