ive had a problem for a while now with it not boosting properly and just not feeling the same.so i have been doing some more logs and have noticed that the ignition timing seems to be getting pulled on boost quite abit and also the lamba reading doesnt move off 0.8, when just pottering the timing is around 33.5 and on full boost goes down to 12.5 which seems to me isnt correct but might be wrong?
no fault codes come up
in the last few months ive replace the maf, n75, crank sensor, 007, temp sensor,fuel filter, new vacuum pipes, tightened boost pipes and nothing seems to have helped. also in the mornings it wont start on the the first turn. could it be fuel pump or fpr on its way out as im thinking 0.8 lamba means lean and is there a way of checking either of these.
thanks in advance