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more diesel - sharpsyerman
I have a 2001 115 pd golf. Recently had a new change over valve fitted under warranty.
fuel consumption has gone up by 15% on like for like journeys
dealer says the car is set up properly now.
would this valve have starved fuel so much when not operating properly prior to new fit?

Sharpsyerman
more diesel - 547HEW
Please excuse my ignorance, but what is this change over valve?

Where is it fitted, what is its function?
more diesel - sharpsyerman
no idea

engine had major flat spot on rapid acceleration.

diagnostic picked up this fault.

its reference on the warranty invoice was N/STK Valve