Jake Brake
Veteran Member
I have a Malone stage 2 tune, manual trans Passat with a front mount intercooler.
I have a problem that keeps acting up. sometimes it runs ok. Does not go into limp mode.
Car has great throttle response and boost down low, then drops off next to nothing and kicks back in after 2500 to 3000rpm. Big drop off in power!
No codes stored. I don't have a VCDS yet.
here is what I have done so far. replace some vacuum hoses.
Pulled a vacuum on the VNT actuator to see if it moves freely and holds a vacuum.
checked the one way valve in the vacuum line
changed the N75 valve
changed the MAP sensor
Had the EGR valve out to clean
checked the vacuum ball for leaks
I have a problem that keeps acting up. sometimes it runs ok. Does not go into limp mode.
Car has great throttle response and boost down low, then drops off next to nothing and kicks back in after 2500 to 3000rpm. Big drop off in power!
No codes stored. I don't have a VCDS yet.
here is what I have done so far. replace some vacuum hoses.
Pulled a vacuum on the VNT actuator to see if it moves freely and holds a vacuum.
checked the one way valve in the vacuum line
changed the N75 valve
changed the MAP sensor
Had the EGR valve out to clean
checked the vacuum ball for leaks