Hello fellow T Fans,

Took my car in for its tune today after putting pump in finally all the mods are in...

After putting my turbo back in my car it would build to 5psi and that's all with an 8psi tune, if I held in a higher gear it would build to 8psi..

Today after getting tune done it was made to push 12psi, and after reading the chart I was shocked..

228.6kw up from 190kw... I didn't realize it was running so low before as I still beating people etc.

Anyways if I give it to it goes to 10psi then falls back to 6psi if I hold in high gear it goes to 12psi once again.

Mechanic took the wastegate pipe of and it still only goes to 10psi etc, if I leave in manual mode it goes to 10psi then drops to 6psi through the rest of the gears...

Now here is mods, Siemens 60lb Injectors, Walbro GSS342 Fuel Pump, Bluepower CAI, HDi Intercooler, Bosch Platinum Spark Plugs and an exhaust...

Any help please...

valve springs

weak actuator?

cat blockage perhaps...

If you pulled the actuator off and theres only 10psi then either the turbo is on its way out, or a major restriction somewhere.

From your mods list it should be happy making high boost, so Id look at the cat as its been common for them to have issues

Its a BF MkII and never has had the rev limiter taken of so I doubt the Valves..

Actuator sounds more down the line to me, anyway of testing though?

Cat, anyway of checking without removing the cat? We removed the hose to the wastegate so by rights it should just go of its tits... Turbo was just put on so hopefully not that...

Sounds like im in the exact same boat as you plugg3r! I dont have all the mods as you, ive just got a cooler. My guess is weak actuator? or maybe cat? but both theories have their flaws :wacko:

Taking my car to an exhaust shop today to get them to check the cat, I hope its just cat collapsed if so ill get a new one fitted there.

Hey was just wondering is there any tests to check the actuator...

After more research appears to be the actuator not pushing flushly against the flapper, will remove it this weekend and try a few things..

hey plugg3r, you get any closer to working out what the problem was?