map sensor issue?
Ive had a new Manifold on my 06 plate GT jtd, I had the manifold blanked at the same time so no swirl flaps and i had my belt and water pump done.
Since i got it back form the shop it has been a bit naf in power and it should be better than ever now with swirls removed.
Basically it dosent have any power unless it has a full tank of fuel then it ran ok but with no power under 2.5k revs .. sounded like a fuel filter clogged.
Ive replace the fuel filter, ive got new top and bottom turbo hoses i've cleaned the MAP sensor and reset the self learned parameters with an old version of multi ecu scan also the egr is clean and seems to be working fine .
The car seemed to work fantastically for a 25 min drive then after nipping into asda i'm back to very low power, makes me scared pulling on to a roundabout.
Could I have damaged the MAP sensor cleaning it?. the neadle seems to have a bit of play in it. would that give this low power?
Other thing could be MAF as I've not checked that yet.
OR the garage has has not refitted fuel pump properly perhaps as it felt starved unless lots of fuel in the tank.
I think the turbos ok as I had 25 mins of blis and at higher revs it pulled well.
if i unplug the MAF will i get performance back in order to check?
Please help !! im missing my ALfa and it worked better when I had leaky swirl flaps