i have FOUR fault codes just done a reading after a few problems earlier and i have fault codes 21 engine coolant temp sensor,23 Mass Air Flow Sensor Circuit,44 Turbocharging Pressure Control Signal and finally 45 Pressure Sensor does anyone know where these are and a possible fix whether i need new sensors or clean them etc all i have found out is that 44 is probably the boost solenoid?????? aaaaany help would be great so many people have given me good advice on here

 

21 is in the block by cylinder no.3 (nearest the turbo,in the picture it would be near the hose underneath the bend in the strut brace and orangey/brown in colour)
23 is the black,square box to which the induction kit is attached (or it will connect to your standard airbox)
44 + 45 are the bits just above the induction kit with all the pipe coming of it.

44 is the vertical cylinder,45 is the bit on top of 44

 

Have you cleared the faults and reread them as you may have some old ones showing up,having 4 at once seems a bit strange

 

NICE ONE MY BLACK WRX WICKED PICS AND INFO CHEERS IF YOU LIVED NEAR ME I'd BUY YOU A BEER:t humb:
''21 is in the block by cylinder no.3''by this i take it you mean in the actual engine???

 

yep i cleared them last night in the garage via ecu reset then went for a 4 hour drive until 6 this morning got up 10ish checked again they are still there and im tired lol

 

ouch

 

Greefumb remove the hoses around from the area and you can see it sticking out of the block

 

nice on dude apreciate it big time, time for a day in the garage whilst me mrs does the roast hehehe

 

no more codes following a day/half a night in the garage ecu reset electrical and brake cleaner cheers for all the help guys