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.
"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
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 🤣
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.
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 👍
Exxelent video 👍👏🤝🏆⭐👑♐
"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
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
Very nicely explained.
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 🤣
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