And a new intercooler

Oh and a full service also

Hi all I am having the nightmare from hell with my grand vitara sz5 1.9ddis I've spent 1200 quid on repairs now and nothing seems to get rid of fault code P1431 New dpf, actuator solenoid, 4x glowplugs, camshaft pully and belt, egr cleaned, boost pressure sensor, map sensor I can't find anything abo...