Gt 1.9 jtd p0401
I know there are a lot of threads on this and I've been reading them for weeks trying to find a situation like mine.
I have had an Alfa GT 1.9JTDM Lusso for about a month, 120k miles. Its had quite a lot of work over the past year including new turbo, clutch, EGR, water pump and timing belt.
From when I bought it when the engine is turned on I get the MCSF error, using and ODB2 plus torque pro I found out Its the P0401. The first thing I tried was an ECU reset, this didnt clear the fault straight away but it dissapeared the next day only to return 2 days later. I was told that the EGR might have been faulty (even though it was fairly new) so, with advice from a 156 owning friend I replaced the EGR with another new one.
This also didnt remove the error message, but it did seem to improve power under 2k revs.
I've tried clearing the fault (didnt work at all) and doing another ECU reset (yet again didnt clear the message straight away but it did dissapear the next day only to return 2 days later).
Where do I try next, MAF, MAP, turbo pipes?
Just a note, the MCSF error has never appeared whilst driving, it only ever appears when I first start the engine during the power-on self test, is this relevant?