Have a 2005 Audi a4 . 3.2 v6 . reoccuring code 2296 . fuel pressures regulator 2 circuit high . replaced both pressure sensors for possible fuel intrusion into sensors . static fuel pressure from tank at 6 bar , key on engine off. fuel pressure reading fluctuate when running possibly due to high pressure pump at fuel system. hesistation . sensor readings at low side and high side pressure regulators I have 5 volts at 2 pins and 18. mv at the other pin. assumin this is signal return . found bulletein km-1379 number but cannot find information regaurding anything else .Pin fit checked at sensor 2 , seems ok squeezed terminals together for in case fretting occuring .