code p0101 & p0103

[mart1977]

can anyone help after 3 new maf sensors i am still getting codes p0101 & p0103 mass air flow problems defo no air leaks mapp done by ian at mpg he swears the map is sound codes come up after a long drive or after a thrash but not low rev driving

[Caveman_nige]

what engine have you got?

[the-wizard]

its a 2.0t

P0101 Mass or Volume Air Flow Circuit Range/Performance Problem

P0103 Mass or Volume Air Flow Circuit High Input

[mart1977]

can anyone help after 3 new maf sensors i am still getting codes p0101 & p0103 mass air flow problems defo no air leaks mapp done by ian at mpg he swears the map is sound codes come up after a long drive or after a thrash but not low rev driving

i have the z20net

[mart1977]

what could throw a maf code if the sen is fine no air leaks map ok am i looking at faulty 02, sens bad ecu, bad connection somewhere or am i missing somthing

[Caveman_nige]

boost sensor maybe, not sure if you can clean them, probably can with some circuit/connection cleaner or a chuck some isopropyl alcohol in plastic zip bag put in the sensor and shake it about then leave in there for 20 mins.. wait until its dripped dry throughly before you put if back on the engine. Incedentally you can clean your MAF with this as it normally sorts them and saves buying new ones.

The boost sensor is otherwise none as the boost solenoid and also the 'Charge Air Bypass Valve', it seems to go and can cause a few issues with differing symptoms.. I am not saying this the definative fix but a replacement part only costs about £14 from or about £12 trade. part number is 55354158. Its not a stock item though so ring first and order one etc.

Does the car drive normally, no loss of power or boost when loading the turbo? The MAF can throw an error even though it is not at fault, it can be over compensating for something else like the boost sensor or a mucky throttle body.

Make sure your air filter is in good condition as well.

[Caveman_nige]

i should add that errors codes will not clear straight away after changing a part, the codes clear after having driven a certain amount of miles or a certain amount of successive restarts without errors being detected. To clear the codes without a code reader you could just disconnect your battery for about 30 mins, be sure you know your radio code though in case it asks for it afterwards, some other settings go to default also like auto window close but these are easily sorted. Apologies if you already knew this bit, but thought it best to post just in case.

[Davis1007]

Did u ever solve this problem I have the same problem and have tried allot of new part with no success