Throttle body

[Bucko72]

Hi guys after some technical advice. I have a mk6 gti and love it. It’s had a stage 1 and I’ve put scorpion exhaust on it. Runs sweet as most of the time. I was getting a 222 and 221 Ecu alarm. Replaced throttle body and accelerator pedal. Alarms have now gone. Most of the time runs sweet but sometimes looses a little bit of boost. My question is do they need to be calibrated/reset. Is there a trick to resetting. Excuse my ignorance for not knowing.

[Snoopy]

From the thread above you comented on.

I missed that bit. Ask who ever fitted it if they did an adaption?
Watch below for why and how to do it.
https://www.youtube.com/watch?v=2zrmhDw_v7Y

Throttle body may need adaption.

But sounds more like you have a diverter valve that maybe going faulty which has a slight tear In the diaphragm.

[Bucko72]

Hi yes I have also been told that maybe the problem. Thank you for your help. I will replace diverted valve. Do you know of any recommendations to an upgraded one as it now been remapped.

[Snoopy]

Others maybe able to advise better on which aftermarket ones, I've read good and bad about all of them over time.