Hello to all,
I have a doblo 1.9D 2002 about 165000km /100000miles
A few months back I had a problem with engine suddenly stopping when warm and starting again normally after cooling a bit . It was easy, I found dozens of convergent stories on google: the RPM/crankshaft sensor. Ordered one, not too difficult to replace, solved the problem...happy
However...
Since that time the Doblo has had permanent , more or less over time, disturbing problems.
there are too problems that should probably be linked
1/ When running the engine experiences "micro cuts" , very short cuts , often barely noticed, the engine lights going on very shortly and engine restarts or continues with a litlle shock
this may happen randomly but I have noticed some patterns that are not general rules
- it happens (for the ones long enough for me to notice) more often the longer I drive. Example when I start a 4 hour drive I may not notice anything for the first hour, and nearing 4 hours drive it may happen every minute. (but sometimes it can happen after 5 minutes drive)
- It may be influenced by small shocks , shakes , on the road, pot holes, whatever, especially after longer drive when it becomes more frequent, any imperfection on the road seems to trigger it. (But most of the time I can drive rough roads , bumps , and notice nothing)
2/ When starting the engine success is random , I switch on the key, starter works, no smoke , engine won't run at all. I need to switch off the key and try again. When cold it usually takes no more than three atempts. When hot it's more like 10 to 30 atempts. In any case it can sometimes start at once and I have so far always manage to restart before the battery is dead.
I had ordered a FAE sensor, first thing I do since it was not expensive, I bought a new sensor, which was a Bosch. But things remained the same
The sensor is always oily when I check it , but cleaning has not much effect
I read that the connector may be faulty , so I removed it and welded and encased the connector wires , but it's no difference
then I checked errors and cleared all because there were many apparently old ones.
After a one hour drive round trip yesterday , I checked errors again (MES, doblo 1.9DS) , and got more confused since I could read :
P0252 Rotor position check - signal high
"The reason for this fault is that ECU has received very high signal from the sensor. The fault is not detected now, but it is stored in memory. Clear fault codes, and observe for future appearance of the same fault. Dashboard warning light was activated for this fault. "
So I understand the problem is right with the RPM/crankshaft sensor but I have no clue
During the drive I never noticed the activated lights or some shock (with experience i detect better and look quickly , anyway,I could have missed the event(s) )
But I stopped three times for errands and had trouble restarting every time
So If anyone could give me any Idea or point out something , I'd greatly appreciate. And what could make a sensor signal "too high" , provided the error message is OK
thanks for any help
Domi
I have a doblo 1.9D 2002 about 165000km /100000miles
A few months back I had a problem with engine suddenly stopping when warm and starting again normally after cooling a bit . It was easy, I found dozens of convergent stories on google: the RPM/crankshaft sensor. Ordered one, not too difficult to replace, solved the problem...happy
However...
Since that time the Doblo has had permanent , more or less over time, disturbing problems.
there are too problems that should probably be linked
1/ When running the engine experiences "micro cuts" , very short cuts , often barely noticed, the engine lights going on very shortly and engine restarts or continues with a litlle shock
this may happen randomly but I have noticed some patterns that are not general rules
- it happens (for the ones long enough for me to notice) more often the longer I drive. Example when I start a 4 hour drive I may not notice anything for the first hour, and nearing 4 hours drive it may happen every minute. (but sometimes it can happen after 5 minutes drive)
- It may be influenced by small shocks , shakes , on the road, pot holes, whatever, especially after longer drive when it becomes more frequent, any imperfection on the road seems to trigger it. (But most of the time I can drive rough roads , bumps , and notice nothing)
2/ When starting the engine success is random , I switch on the key, starter works, no smoke , engine won't run at all. I need to switch off the key and try again. When cold it usually takes no more than three atempts. When hot it's more like 10 to 30 atempts. In any case it can sometimes start at once and I have so far always manage to restart before the battery is dead.
I had ordered a FAE sensor, first thing I do since it was not expensive, I bought a new sensor, which was a Bosch. But things remained the same
The sensor is always oily when I check it , but cleaning has not much effect
I read that the connector may be faulty , so I removed it and welded and encased the connector wires , but it's no difference
then I checked errors and cleared all because there were many apparently old ones.
After a one hour drive round trip yesterday , I checked errors again (MES, doblo 1.9DS) , and got more confused since I could read :
P0252 Rotor position check - signal high
"The reason for this fault is that ECU has received very high signal from the sensor. The fault is not detected now, but it is stored in memory. Clear fault codes, and observe for future appearance of the same fault. Dashboard warning light was activated for this fault. "
So I understand the problem is right with the RPM/crankshaft sensor but I have no clue
During the drive I never noticed the activated lights or some shock (with experience i detect better and look quickly , anyway,I could have missed the event(s) )
But I stopped three times for errands and had trouble restarting every time
So If anyone could give me any Idea or point out something , I'd greatly appreciate. And what could make a sensor signal "too high" , provided the error message is OK
thanks for any help
Domi