Heres something that i found the other day, was working on a friends car the other day doiing an oil change, it's an 4 1.8tq i dorve it and it felt underpowered so ran vag com came up with 16683 boost regulation control range not reached. Hmmm anyway took the undertray off and was draining the oil and i noticed the dv was a silver shiney thing made by bailey.
Now in the back of mind i seem to remember audi's not likeing bailey valves (don't know why) so took the valve and replaced it with an old audi one that i had spare, the bailey valve you see and blow through it (same shape as audi) the audi one you can't.
Code now gone and performance restored. Whilst i know this was on an a4 i am sure this applies to I5 engines as well.
Now in the back of mind i seem to remember audi's not likeing bailey valves (don't know why) so took the valve and replaced it with an old audi one that i had spare, the bailey valve you see and blow through it (same shape as audi) the audi one you can't.
Code now gone and performance restored. Whilst i know this was on an a4 i am sure this applies to I5 engines as well.
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