Having a underboost problem on 2012 ibiza 1.6 tdi. Having just recently replaced the turbo cartridge as it was leaking oil. I got a underboost code up. So I replaced the actuator as it recommended on a YouTube video but this hasn't fixed the problem. Can't see any holes in boost pipes.. dpf had been gutted and mapped out along with egr mapped out 6 month ago. Has got real bad. Goes into limp mode and throws underboost code up everytime I go over 2000rpm. Any ideas please would be welcome..?
