Hello

Suddenly my 850 started to boost too much.

Its giving 414 code "high boost pressure"
Can td04-16t turbo cause this when old turbo was 15g?

Car worked normally for a while (car:s own boost meter went to a bit over half area)

Now it started to charge the engine to the end of the white area.
And this happened after i touched the turbo hoses... Stupid be.
Which hoses i should check that could cause this? On my opinion i didnt took anything off by mistake and everything is on their right places. Just checked they were on the right spots.

So its hard to tell did i accidently took something away, or did this problem came now and everything is on right spots.

Car also starts to boost engine very early and very rapidly. If driving normal speed with fifth gear and going wot, it boosts the engine to about 1 bar instantly. ( i think its about 1 bar when the tacho is in the end of white area.?)

I have aftermarket boost cauge too which stopped working one day. Can this cause this somehow if its not connected and slipped away or something?

 

Did you just add the 16T or did you also get the ECM reprogrammed (tuned) for the bigger turbo ??

You might want to check out the hose routing in case you crossed hoses.

Where are you taking the signal from for your add on boost gauge ??

 

Hello mate.

Thanks for the diagram.

My ecu is 100% standard. It worked first very well and charged like a bit over half of the white boost cauge area.

Im gonna start with those hoses