Hi,
First post on here, after some advice if possible - hope you don't mind!
Two weeks ago I replaced a CCZB engine on a friend’s MK6 GTi due to the chain tensioner failing.
The replacement engine ran well from the first startup, no engine trouble codes or irregular running – until yesterday, when the engine and EPC lights illuminated (The new engine has covered 450 miles so far).
The first thing I checked was the oil – which had a very strong smell of petrol. The level was also over the maximum.
I drained out the oil and found it to be very thin – as well as being a litre overfilled (which I’m guessing is fuel)
It seems there is fuel getting into the engine somehow, I’m guessing this is either via the injectors, or high-pressure fuel pump.
The engine runs normally at the moment, nice and smooth - you wouldn't think anything was wrong!
The exhaust gasses smell as they should when warm – doesn’t smell like its running rich, which leads me to think it’s the high pressure pump that’s leaking, does this sound plausible?
I did remove the HPFP from the old engine to fit on the replacement engine - is it possible I could have damaged it in the process?
I have listed the fault codes below – keen to hear if anyone has experienced the same.
The car isn’t being driven for the time being, whilst we figure out what’s wrong – my instinct is to replace the high-pressure fuel pump, but don’t want to spend on that if it may be something else causing the issue.
000370 - Fuel Trim; Bank 1: System Too Rich
P0172 - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 18
Mileage: 122016 km
Time Indication: 0
Date: 2014.14.19
Time: 15:34:39
Freeze Frame:
RPM: 761 /min
Load: 18.0 %
Speed: 0.0 km/h
Temperature: 98.0°C
Temperature: 38.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 13.843 V
000370 - Fuel Trim; Bank 1: System Too Rich
P0172 - 000 - - - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100000
Fault Priority: 0
Fault Frequency: 6
Mileage: 122003 km
Time Indication: 0
Date: 2014.14.19
Time: 14:33:36
Freeze Frame:
RPM: 1914 /min
Load: 39.6 %
Speed: 78.0 km/h
Temperature: 96.0°C
Temperature: 21.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 13.970 V
000769 - Cylinder 1: Misfire Detected
P0301 - 000 - - - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100000
Fault Priority: 0
Fault Frequency: 3
Mileage: 122418 km
Time Indication: 0
Date: 2014.14.23
Time: 14:17:02
Freeze Frame:
RPM: 763 /min
Load: 20.8 %
Speed: 0.0 km/h
Temperature: 100.0°C
Temperature: 41.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 13.716 V
000771 - Cylinder 3: Misfire Detected
P0303 - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
Mileage: 122428 km
Time Indication: 0
Date: 2014.14.23
Time: 15:42:16
Freeze Frame:
RPM: 767 /min
Load: 24.7 %
Speed: 0.0 km/h
Temperature: 98.0°C
Temperature: 43.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 13.589 V
004874 - Cylinder Disabling
P130A - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
Mileage: 122430 km
Time Indication: 0
Date: 2014.14.23
Time: 15:51:00
Freeze Frame:
RPM: 775 /min
Load: 26.3 %
Speed: 0.0 km/h
Temperature: 98.0°C
Temperature: 43.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 13.843 V
000772 - Cylinder 4: Misfire Detected
P0304 - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 1
Mileage: 122432 km
Time Indication: 0
Date: 2014.14.23
Time: 15:54:24
Freeze Frame:
RPM: 1579 /min
Load: 13.7 %
Speed: 42.0 km/h
Temperature: 98.0°C
Temperature: 32.0°C
Absolute Pres.: 1020.0 mbar
Voltage: 13.843 V
