A dirty air filter will cause the car to loose power before overfueling providing your air mass meter or map sensor and lambda probe are working correctly as the ecu will adjust the required fuel according to the air coming in and the air remaining in the exhaust. most likely a sensor fault if overfueling or possibly a cracked exhast manifold before the lambda probe.

might blow the welds on the intake :o :lol:

What engine is it? Could be lamba too.

Its not for me someone said that they are gonna replace the air filter to try and sort a slight overfueling problem but I said I dont think it would help much as overfueling is more sensor related and a slightly dirty air filter isnt exactly gonna send the afm bonkers either

can do yes but would have to be bloody dirty.
other than that a good spanking normaly cures anything thats starting to coat on the injectors (put some fuel cleaner in it aswell)

Yes, due to not enough air getting into the inlet.

i wouldnt have thought so, but sayin that it depends how dirty it is lol, could fuck up you intake tho

Simple question