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.

Pros: running smoothly

Cons: misfires and surging

Vehicle: Volkswagen Passat B6

Mileage: 201168 km

Part number: HPP0014

HITACHI › Ignition coil

SelfawareEggplant 31 Mar 2021, 09:42

Rating 5.0

Starting:
Jerks:
Warning light:

I changed all 6 coils on mine for those last year and they've worked without any issues.

Pros: worked without issues

HITACHI › Fuel pump

Zxoboe 24 Feb 2021, 21:00

Rating 5.0

Stalling:

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

Pros: engine strong like s3

HITACHI › Ignition coil

iluvmypups 15 Apr 2016, 04:49

Rating 5.0

Warning light:

I also ordered four (4) new ignition coils from Hitachi, installed them 60 miles ago and it's been smooth since the installation. My car is quieter, more responsive, and idles better. No, check engine lights at all.

Pros: quieter, more responsive, idles better

Mileage: 96 km

HITACHI › Alternator

WillemBal 17 Sep 2013, 14:00

Rating 4.0

I ordered an alternator with code 07C903021N (Hitachi LR1190-907E) and I hope it is the right one, because there are many versions and the all look the same, except for the position of the B+ post and the DFM terminal connector with respect to the orientation of the cooling tubes.

Pros: ordered new alternator

Cons: many versions look same

Vehicle: Volkswagen Phaeton

Part number: 07C903021N

HITACHI › Alternator

Estacaco 6 Sep 2012, 19:53

Rating 4.0

My alternator is neither a Bosch or a Reman. It was bought new and its Hitachi in brand. Came with lifetime warranty.

Pros: lifetime warranty

Vehicle: Volkswagen Jetta

HITACHI › Ignition coil

Enclavet 31 Jan 2012, 01:36

Rating 4.0

Jerks:

Did this conversion on my 2001 Audi A4 with a standalone. I ran it with stock (3ms) dwell and up to 5ms dwell and didnt notice any difference. I was running Hitatchi coils before and would notice slight bumps in idle. Now all I hear is smooth butter at idle.

Pros: smooth butter at idle

Cons: no noticeable difference

Vehicle: Audi A4

HITACHI › Ignition coil

enginerd 16 Jun 2010, 02:11

Rating 5.0

The old AWD hitachi coils are far more reliable in my experience. I would not change to the awp style from the bolt downs. I have had ~8 failed AWP coils over the years on my 2001 audi/2002 gti and I have 8 hitachis now in my 2 1.8t's for a few years now and no hitachi failures. This is with track days on the gti. They also bolt down so you won't have them popping up on you whack a mole style like the awp ones sometimes do

Pros: more reliable, no failures

Cons: awp style unreliable

Vehicle: Audi