Im having trouble i cant step on the gas hard and go.without the engine malfunction coming on it keep saying boost pressure to low and i cant seem to find the leak i took it to bmw and they said vanos solenoid need to be changed.. I changed and still the same issue
Im having trouble i cant step on the gas hard and go without the engine...
you sure the didn't say boost solenoid?
Is that the only code? That's the underboost code, you have a boost leak. Could be vacuum line, charge pipe, etc. are you stock? I've seen people with that code with JB4 and the newest firmware. You have to change a setting on JB4 (if you have one). If not, boost leak
Could be your Diverter Valves
Charge pipe could be cracked, vacuum canisters could be cracked, intercooler piping could be cracked ect
Yeah I'm stock
Should I get it smoked
That's a good way to find a boost leak, if everything looks good on a visual inspection
Get it smoked. You should check the two vacuum lines to the reservoirs. Usually they crack and leak. Sometimes right near the oil filter housing where they bend.
Smoking it should definitely let you know where they're at. Pop off your two vacuum lines to the wastegate and check with a vacuum gauge to make sure they do not decay.