you need to scan the ECU and post the P code
but check the turbo boost pipes and intercooler, also the small bore vacuum pipes
Thanks TomColin's A2 uses the AMF engine and therefore doesn't have a throttle body - it has the vacuum-actuated anti-shudder valve, but that's it.
Accelerator position in the TDI causes the ECU to inject more fuel, but the air intake always runs wide open.
Cheers,
Tom
Paul no need to apologize I should have put in title TDiapologises i assumed a petrol