2020年9月28日 · • CHECK: Fuel Metering Valve - N290- component connector terminals 1 to 2 for resistance. • SPECIFIED VALUE: 1.5 to 11 Ω (± / 0.5 Ω @approx. 20° C) IGNITION: ON

2007年6月14日 · I logged my LPFP and HPFP this morning. Assuming the deviation on the low pressure side isn’t normal / ideal and potentially the cause of my N290? The HP side seems to be following fine. The blue boxed area is 100% throttle, before was rolling into it. Sent from my iPhone using Tapatalk

Removing the N290 fuel metering valve to inspect for metallic particles should only be considered as a last step after all GFF diagnostic procedures have been performed, including testing supply volume to the high pressure fuel pump (low pressure side) and checking for internal leakage from the injectors and N276 pressure regulating valve.

2018年10月7日 · I had this literally three weeks ago on my Q7 and it was the N290 – 2007 BUG, cranking, zero pressure in CR, no faults in ECM. I first recorded the starting sequence into a log. The high pressure CR lines showed no pressure (0 bar).

2018年8月18日 · On top of our TDI’s High Pressure Fuel Pumps, one will note the N290/Fuel Metering Valve attached by two torX screws. First clean the area with compressed air, remove both screws and firmly lift up.

2018年3月13日 · Fault with the N290- Fuel Metering Valve (If applicable) Engine timing chain worn/stretched. (Only some 2006 to 2009 3.6L gasoline engines- See Special Notes) Possible Solutions. Check the Advanced Measuring Values for Rail pressures; Check power supply at the N276-Fuel Pressure Regulator Valve/N290- Fuel Metering Valve

P0091/000145 - Valve for Fuel Metering (N290): Short to Ground Possible Symptoms. Malfunction Indicator Light (MIL) ON; No start or performance problem(s) Possible Causes. Wiring and/or Connector(s) from/to Transfer Fuel Pump (G6) -or- Fuel Pump (FP) Control Module (J538) faulty. Transfer Fuel Pump (G6) faulty. See Special Notes

2017年11月1日 · The fuel pressure was varying wildly at idle. I replaced the fuel pressure sensor, but no fix. then last night i replaced the N290 valve (no sign of metal on the gauze). After fitting the new valve, the car started and idled for around 5 seconds then stopped and wouldn't restart. I fitted the old valve, but still wouldn't start.

2011年12月20日 · So I've had a P0089 - Valve for Fuel Metering (N290) Implausible Signal code for awhile but the car has been drivable and have sort of ignored it. Today my car starting shaking while it was sitting at idle and now I can't get it started.

Fuel metering valve N290 function – initialised To increase the quantity inlet to the high-pressure pump, the fuel metering valve N290 is initialised by the diesel direct injection system control unit J248 using a pulse width modulated (PWM) signal. Due to the PWM signal, the fuel metering valve is pulsed closed.