Gazbam71

It went on the vagcom at weekend and it read power boost control . The valve was replaced about 4 months ago with an N75 from euro parts. I'm wondering if I got a duff part as it wouldn't be the first time I got something from there that wasn't up to the job. All the actuator and turbo is working fine and had the egr cleaned. All the pipes seem to be ok.

The servo pipe was replaced. This was the initial problem that every time it went above 2000 rpm it went into limp mode. It's now just at 30mph it has a judder. Anything above it and it's no problem. It will quite easily do 80 all day and return a good mpg. I'll get the injector harness checked. Thanks.

Thanks, the brake servo pipe was the one that caused all the initial problem . Soon as it hit 2000 rpm it went into limp mode. This was replaced and it's run great since apart from this judder at 30. It will accelerate and run great at anything above it. I will get the injector harness checked. Thanks.

Thanks, the brake servo pipe was the one that caused all the initial problem . Soon as it hit 2000 rpm it went into limp mode. This was replaced and it's run great since apart from this judder at 30. It will accelerate and run great at anything above it. I will get the injector harness checked. Thanks.

I have a 52 plate TDI auto. When I bought it some idiot had replaced the vacuum pipe in a flexible hose. This resulted in an endless search into why it kept going in limp mode. The pipe was replaced as was the maf sensor and power control valve. All is great except at a steady 30 mph . It has a bit of a stutter. It also poorly towed a 2 berth caravan up hill at weekend. Great on the flat though. Has anyone any ideas? Thanks.