Turns out my SAI code, is due to a faulty egr valve. Looking for the part number if anyone can help?
Audi A4 1.8 T EGR Valve 06B131101H | eBay
EGR156 AUDI A4 1.8 EGR Valve | eBay
Thanks in advance!
Audi A4 B7 SE S line TFSI Quattro.