Citroën - HDi Common Rail Injection Systems (2004)

Section 1 - Introduction
Section 2 - The Fuel Circuit
Section 3 - The Injection Strategy

[@californiadreamin8423]

My Fiat Ulysse ( same engine as in video ) kept killing my ECU. Three times. The failure always occurred in the wet. Everyone I consulted said I had a faulty earth, other people said I had a corroded harness. I had my ecu tested by specialists who confirmed I had a voltage spike which was killing one of the ecu circuits , the design of which should have made it impossible. These spikes can even come from an injector fault. Within the last week, I’ve learnt that a faulty solenoid can cause this fault. I still have my Ulysse which is now a project. Totally uneconomic if put into a garage half of whom haven’t a clue, and my mot garage consulted the main dealer, who were totally useless. When these engines run, they run well, but when they go wrong they are a disaster. To keep me mobile I bought a ZX banger and now use a 306 1.9d. which is a great car. When my Ulysse ran, I loved it. The Peugeot 806, and the Citroen Synergie are identical.

[@zeljkojakelic496]

Exxelent video 👍👏🤝🏆⭐👑♐

[@alancobbin1310]

When the HDI came out in 1998 it was so advanced for the time ,very good engine if looked after it could achieve 500k miles plus ,great video 👍

[@Hugobros3]

"The pre-injection function only happens < 3000 rpm" ooooh! THAT's why ! My C3 does make that distinct old-school diesel knocking noise when you accelerate a bit too enthusiastically before it's properly warmed up, I always figured there was something in the ECU that was making it give up on pre-injection beyond 2500rpm or so, and it is! Nice to be validated by Citroen themselves :D

[@mt23289]

Had couple of 406,s years ago ...one 90bhp and one 110bhp...really good engines...and pretty straight forward to service even for a novice like myself

[@deiu9999]

Very nicely explained.

[@mplewp]

I niw have a crank but no start . Tankpump works & yesterday it still drove with some startpilot . Im seriously looking at the regulator . But maybe its best i look at sensors first 🤣

[@rover416si8]

ROVER VIDEOS FULL PLEASE CAR ROVER 400/ ROVER 416 SI SEDAN RED

[@jreg2007]

1st