Boost issue
Hi all
I’m looking for any help on the issues I’m having with my 2007 focus st.
The car under full load drops and picks up boost in waves. Also when driven slowly/normally warming it up there is hesitation going up the revs like what little boost it’s getting is still being taken away.
Please any ideas on what to do next would be greatly appreciated as already done maf sensor, boost solenoid and pressure test and coming up with no answers
cheers in advance