Loss Of Boost On R34gtt

[R34GT-t_07]

Just noticed recently that when i open full throttle my stock boost guage is reading lower than usual.

Before it hit just beneath the 1 on the scale but now its hardly going over the line before the top one (which is like 3/4).

My mods are a catback and a pod which is around 6 months old.

I know the guages are inaccurate but im puzzled as to why its not reaching the 1 on the scale, but the car still seems to be going good.

ive checked all presuusre lines, they all seem fine and the car runs fine. Not blowing any kind of smoke just the occasional backfire.

Could this be the error in the guage or am i loosing boost.

Plz any help asap would be greatly appreciated

cheers

[Abo Bob]

Check the line going to it the sensor and the one way valve before that. It's very easy to snap the inlet to the one way valve thus leak some boost and read lower.