My 2008 3.6 Passat had been throwing CELs for fuel pressure off and on for a while. Then last week the N276 (Fuel Pressure Regulator valve in the High Pressure Fuel Pump) revealed itself as the source of the problem by failing completely. I got tons of misfires and surging on cold starts since the pressure in the fuel rail wasn't being regulated and maintained properly. Otherwise the job was pretty straightforward. I got a Hitachi HPP0014 from RockAuto as a replacement HPFP (original was a Hitachi as well). The plug for the N276 had a little gas in it, confirming that the N276 had failed internally at 15 years/125,000mi.
Reviews of HITACHI fuel pump
6 votes
2 reviews
I just done the works for my engine. I prefer make 1.8 to 2.0 and same time use some good racing parts 1,u need s3/7r crank shaft,bearing is 48mm,then u don\u2019t need change block,2,144mm Rods I use forged from maxracing,.3 oem 2.0 pistons but I use forged piston,depending how high boost u want later 4,oem 2.0 injectors 5,hitachi hi press fuel pump.thats the all parts can make ur engine just strong like s3 or even better
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