Hey guys This question isnt about a skyline but you guys know alot more than most other forums do
I just bought a 180sx recently and I've been having so much trouble trying to get the boost stable. Car came with a profec b spec 2 which ive tried tuning. I've changed the vacuum line to the actuator incase it was cracked and put a nipple into my cooler. After all this it still spikes so I bought a gfb manual bleed valve and it still have the same problem. It spikes upto 1.8bar on the stock t25.
Car is running a sr20, fmic, pod and ebc from what I can see. Previous owner barely knows whats is what. What else can I check and change to maybe stop this problem.