Please could someone give me some advice ive had my 300tt for 2.5 years its regularly serviced and looked after but ive noticed that im losing boost ill try to explain

 

Uk auto running jwt stage 1 map

Stage1 + apexi avcr

 

Controller when off 0.45-0.47

 

A mode is set to 0.70 duty at 55% hits 0.69

B mode is set to 0.80 duty at 56% hits 0.70 was hitting 0.80 5-6 months ago

 

Now before any one starts about boost leaks ive tried tighning clamps around pipes etc but cant find anything is there a easy way of detecting them some one also suggested it might be a sticky waste gate or is the avcr just sorting out the boost curve I still don’t really understand the damm thing any help would be appreciated

 

Addz

reconnect the stock boostsolenoids and turn off the boostcontroller.

Then if you're able to reach normal stock boost, it's probably your AVCR acting up in some way..

 

A way to check the wastegates is to disconnect the hoses that run to the wastegate valves and put (pulsating) compressed air on it and look if you can see/hear the little lever that connects to the valve move. (it's best to do this with some help since you have to get under the car to get a better look at the driversside wategate valve)

 

-Eric

cheers eric