Possible causes – Faulty Mass Air Flow (MAF) sensor– Low fuel pressure– Vacuum leak on engine– Faulty HO2S bank 1 Symptoms – Engine Light ON (or Service Engine Soon Warning Light) AUDI Related P1128 code 2000 AUDI A8 Engine And Engine Cooling:engine 2001 AUDI A6 Engine And Engine Cooling:engine 2001 AUDI A8 Engine And Engine…