no recent changes
car running great
54k miles
just went out to the car after work on Thurs, it started but misfired, i turned it off then it was ok and i drove home...
then went to use it again an hr later and it barely started, and i get EPC/EML lights on, and its barely driveable , just bogs down
VCDS scan shows me at least 4 things that now appear to have no power
(which implies an upstream relay, fuse or cable issue , hopefuly not the ECU!)
4 Faults Found:
008852 - Fuel Pressure Regulator Valve (N276)
P2294 - 004 - Open Circuit
Freeze Frame:
Fault Status: 01100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 88207 km
Time Indication: 0
Date: 2050.14.20
Time: 21:43:24
Freeze Frame:
RPM: 756 /min
Load: 20.0 %
Speed: 0.0 km/h
Temperature: 66.0°C
Temperature: 41.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V
001112 - Evap System Purge Control Valve (N80)
P0458 - 002 - Short to Ground
Freeze Frame:
Fault Status: 01100010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 88207 km
Time Indication: 0
Date: 2050.14.20
Time: 21:43:25
Freeze Frame:
RPM: 765 /min
Load: 20.0 %
Speed: 0.0 km/h
Temperature: 66.0°C
Temperature: 41.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.097 V
000052 - Turbocharger Bypass Valve Control Circuit
P0034 - 002 - Low
Freeze Frame:
Fault Status: 01100010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 88207 km
Time Indication: 0
Date: 2050.14.20
Time: 21:43:25
Freeze Frame:
RPM: 765 /min
Load: 20.0 %
Speed: 0.0 km/h
Temperature: 66.0°C
Temperature: 41.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.097 V
000581 - Solenoid Valve for Boost Pressure Control (N75)
P0245 - 002 - Short to Ground
Freeze Frame:
Fault Status: 01100010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 88207 km
Time Indication: 0
Date: 2050.14.20
Time: 21:43:25
Freeze Frame:
RPM: 765 /min
Load: 20.0 %
Speed: 0.0 km/h
Temperature: 66.0°C
Temperature: 41.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.097 V
which at this point looks like a fuse/relay ive missed , ecu or broken wire
At this point I took the car to my local trusted garage for them to triage from here
symptoms were reduced voltage (3V) against the circuits indicated as faulty on the fusebox
garage tried loom checks, fusebox replacement, an ecu swap
and it made no difference, so they went back through the continuity loom check and they then found a short under the fusebox as it bends and passes through metal
(anyone got a picture of the loom routing under the fusebox by any chance?)
at that point they also worked out the relay had been taken out by the problem too.
So in all whats changed on the path to resolution
- new relay
- a few new fusebars (precaution)
- new fusebox engine bay
- repair loom short
- 4 hrs labour
final bill was just short of £700, of which 50% is parts and 50% labour.
Garage have been brill in progressing this work, I left it with them indicating they had as much time as needed to resolve and no rush
that way they could work on it as and when around other jobs (they did way more than the 4hrs they charged for)
moral of the story , its usually something simple (but it can take a lot of time to get to just where!)
Most of this is repeated at https://www.mk5golfgti.co.uk/forum/index.php/topic,132793.0.html to share the knowledge
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