:headbang:
hi guys been getting PO420 code on my 2.0 l z4 and would like some advice please..
changed front and rear O2 sensors,after testing found to be faulty ,but code returned.
changed coils and plugs,ran smoother but code returned.
changed manifold/cat code returned after 400 mls.. :headbang:
car runs smoothly and emissions are within tollerance,as it should after chaging everything.
cant see any leaks on intake system or exhaust,..
seems it comes on if car is run at low revs if engine is revving doesn't seem to trigger code..?
any ideas welcome please
any ideas guys..
hi guys been getting PO420 code on my 2.0 l z4 and would like some advice please..
changed front and rear O2 sensors,after testing found to be faulty ,but code returned.
changed coils and plugs,ran smoother but code returned.
changed manifold/cat code returned after 400 mls.. :headbang:
car runs smoothly and emissions are within tollerance,as it should after chaging everything.
cant see any leaks on intake system or exhaust,..
seems it comes on if car is run at low revs if engine is revving doesn't seem to trigger code..?
any ideas welcome please
any ideas guys..