Still having problems with error code po2099 turbo under boost? changed air filter and removed error worked for 1 week then went back in to limp mode?

searched all pipes for blockage and tears all fine can anyone help? the engine is a 4M41 model car only done 20k? anyone had same problem?

any mods and are you running standard boost ?

Wastegate?

cars all standard no mods engine managenent keeps coming on after about 10 miles with warning code PO2099 turbo/supercharger under boost no blockages removed all pipes changed air filter still coming back on ..no black smoke and turbo sounds ok! any help would be great as main dealers are not interested?

you speak of mods? what are they... and big thanks for help no other forum replyed xx ive attached a pic of my car

cars all standard no mods engine managenent keeps coming on after about 10 miles with warning code PO2099 turbo/supercharger under boost no blockages removed all pipes changed air filter still coming back on ..no black smoke and turbo sounds ok! any help would be great as main dealers are not interested?

you speak of mods? what are they... and big thanks for help no other forum replyed

A Mitsubishi what would help, year etc, and give a bit of time for guys to come on.

Mods can be a plug & play chip, piggy back boosters, dump pipe etc.

Are you in England or Thailand see Eng plates in the picture. ?

Why won't dealers help. ?

25k only must be under warranty ?

When the error reading comes up does the car still drive the same or what.?

You changed airfilter and it was OK so could just be a sensor fault.

I would start at the manifold pressure sensor. This tells computer how much boost is being produced, and when to cut back fuel to maintain set pressure.

Yean iam in uk.. its a 2007 3.2 td DiD Shogun (Diamond edition top spec)

the main dealers have done nothing but cause my pocket to dry out .. I took it to them twice and they said it was giving error code PO2099 Turbo/Supercharger Under Boost.. they said it was the boost valve and changed it worked fine for 2 weeks then engine management light came on again so i took it back and they said it was air filter after a couple of days light came back on giving same error code?

car goes into limp mode driving for about 10 miles but after a few hours with engine off the error light goes off? been to another garage with no joy he checked wastegate also all pipes he did say to try a boost controller and dial to check boost??

everything works fine no funny noises or black smoke just cant get to solve problem?? thanks for help guys x

One topic only please.

Continued here.