This is my first post so go easy please. Sorry it's on the long side but I wanted to get all relevant facts in.
My Croma is an 06 1.9 16v with 57.7k miles on it. The last service was at 54k as per the schedule and was carried out by an independent. I've had the car about 18 months with no issues.
About 6 weeks ago the 'Check engine' light came on and the car went into 'limp, or get me home, mode'. I pulled off into a service area, waited for an hour or so and tried again. The 'Check engine' light stayed on. I decided to make use of my RAC membership and get transported back home, approx 100 miles away. When the car was started to drive off the lowloader the 'Check engine' light did NOT stay on.
Then about 4 weeks ago the light came on again and stayed on after each engine start. I got this checked and was told that faults 2004 and 2013 had been logged (and now cleared). I was also advised to use a better quality diesel than Tesco regular so have used Shell VPower since then. The car seemed to be running fine and diesel consumption was normal.
About 3 weeks ago the 'Check engine' light came on again and stays on after each engine start. Again the car seemed to be running fine and diesel consumption was normal. Last week I bought an ELM327 v1.4 and downloaded FiatECUScan. When I checked yesterday (26th March) I had these faults logged:
P0401 - EGR device (2) Fatal: Engine Gas Recirculation Flow Insufficient detected. The reason for this fault is that ECU has received very low signal from sensor. The fault is present now. Take appropriate action to fix this sensor fault. Dashboard warning light was activated for this fault.
U1601 - C-CAN line error Stored: The fault is not detected now, but it is stored in memory. Clear fault codes, ...
U0426 - Invalid Data from Vehicle Immo Ctrl Mod. Stored: The reason for this fault is that ECU did not receive signal from the sensor.The fault is not detected now, but it is stored in memory. Clear fault codes, ....
I cleared the fault codes and made a couple of < 20 mile round trips. Unfortunately the 'Check engine' light came on again in the evening. So today I checked again and have the same P0401 fault logged.
Using FiatECUScan I checked a few parameters WITHOUT the engine running:
Odometer at last DPF replacement: 90,680 km (= 56675 miles) IT WASN'T CHANGED AT THE SERVICE.
Odometer at last regeneration: 31.4 km (Huh?)
Particle filter obstruction: 66.38%
Average distance in last 5 regenrations: 191 km (Very low?)
Last 5 regenerations average duration: 339 sec (About right?)
Odometer as last Oil Change: 23080.2 km (Not reset at last service?)
Distance to next Oil Change: 31,500 km
Oil Change Counter: 2 (Not reset at last service?)
Oil deterioration indicator: 63.00%
EGR Valve Opening: 4.00%
EGR control: OFF
Particle filter status: Normal clogging
With the engine running at various RPM between 750 and 2100 the EGR Valve Opening never shifted off 4%, the EGR control never changed from OFF, and the 'Particle filter obstruction' crept up to 67.00%
Not being an automotive engineer, I'm looking for confirmation of my interpretation of the above i.e.:
The Oil settings weren't reset at the last service. Could this impact the EGR and regenerations?
The EGR Valve just isn't opening - the solenoid could be stuck or there's no signal to it
DPF regenerations are no longer happening
The DPF is gradually getting clogged up
If I don't fix the problem soon I'll knacker the DPF
Is that right?
Not having the time/skill/patience to take the EGR valve off and clean it (I can see where it is but I'm not confident about removing/refitting), I intend to get the car in to my nearest Fiat dealer (Glyn Hopkin in Ipswich) to get the EGR issue fixed and also to get the oil changed and the ECU Oil settings reset. Does this seem like a sensible and reasonable thing to do?
Awaiting responses ...
WAM
My Croma is an 06 1.9 16v with 57.7k miles on it. The last service was at 54k as per the schedule and was carried out by an independent. I've had the car about 18 months with no issues.
About 6 weeks ago the 'Check engine' light came on and the car went into 'limp, or get me home, mode'. I pulled off into a service area, waited for an hour or so and tried again. The 'Check engine' light stayed on. I decided to make use of my RAC membership and get transported back home, approx 100 miles away. When the car was started to drive off the lowloader the 'Check engine' light did NOT stay on.
Then about 4 weeks ago the light came on again and stayed on after each engine start. I got this checked and was told that faults 2004 and 2013 had been logged (and now cleared). I was also advised to use a better quality diesel than Tesco regular so have used Shell VPower since then. The car seemed to be running fine and diesel consumption was normal.
About 3 weeks ago the 'Check engine' light came on again and stays on after each engine start. Again the car seemed to be running fine and diesel consumption was normal. Last week I bought an ELM327 v1.4 and downloaded FiatECUScan. When I checked yesterday (26th March) I had these faults logged:
P0401 - EGR device (2) Fatal: Engine Gas Recirculation Flow Insufficient detected. The reason for this fault is that ECU has received very low signal from sensor. The fault is present now. Take appropriate action to fix this sensor fault. Dashboard warning light was activated for this fault.
U1601 - C-CAN line error Stored: The fault is not detected now, but it is stored in memory. Clear fault codes, ...
U0426 - Invalid Data from Vehicle Immo Ctrl Mod. Stored: The reason for this fault is that ECU did not receive signal from the sensor.The fault is not detected now, but it is stored in memory. Clear fault codes, ....
I cleared the fault codes and made a couple of < 20 mile round trips. Unfortunately the 'Check engine' light came on again in the evening. So today I checked again and have the same P0401 fault logged.
Using FiatECUScan I checked a few parameters WITHOUT the engine running:
Odometer at last DPF replacement: 90,680 km (= 56675 miles) IT WASN'T CHANGED AT THE SERVICE.
Odometer at last regeneration: 31.4 km (Huh?)
Particle filter obstruction: 66.38%
Average distance in last 5 regenrations: 191 km (Very low?)
Last 5 regenerations average duration: 339 sec (About right?)
Odometer as last Oil Change: 23080.2 km (Not reset at last service?)
Distance to next Oil Change: 31,500 km
Oil Change Counter: 2 (Not reset at last service?)
Oil deterioration indicator: 63.00%
EGR Valve Opening: 4.00%
EGR control: OFF
Particle filter status: Normal clogging
With the engine running at various RPM between 750 and 2100 the EGR Valve Opening never shifted off 4%, the EGR control never changed from OFF, and the 'Particle filter obstruction' crept up to 67.00%
Not being an automotive engineer, I'm looking for confirmation of my interpretation of the above i.e.:
The Oil settings weren't reset at the last service. Could this impact the EGR and regenerations?
The EGR Valve just isn't opening - the solenoid could be stuck or there's no signal to it
DPF regenerations are no longer happening
The DPF is gradually getting clogged up
If I don't fix the problem soon I'll knacker the DPF
Is that right?
Not having the time/skill/patience to take the EGR valve off and clean it (I can see where it is but I'm not confident about removing/refitting), I intend to get the car in to my nearest Fiat dealer (Glyn Hopkin in Ipswich) to get the EGR issue fixed and also to get the oil changed and the ECU Oil settings reset. Does this seem like a sensible and reasonable thing to do?
Awaiting responses ...
WAM