Hi Guys,
Issues on my MKV. Started randomly, having no power after a run or 2. Sounds like the car suffers from low fuel.
Scanned, got a P310B-002 error - Low Fuel Pressure.
I cleared the logs, then it was fine again, Tested took it for a run - Noticed when car gets hot or up to heat, low pressure pump runs on idle 70 percent increasing to 90 and car sounds like it doesn't get petrol with a slight rough idle.
Replaced fuel filter, issue still there. Error will come up after a 10km drive, after that doesn't get petrol and possibly going limp mode
All I have left to think is maybe the low pressure pump ?
MKV Fuel problems
- Jacques1397
- Cadet
- Posts: 659
- Registered for: 9 years 10 months
- Car Make: VW
- Car Model: Citi Rox 1.4i & Golf 5 GTI
- Membership No: 1970
- Location: Nelspruit
MKV Fuel problems
Current :
2007 Golf 5 GTI
2008 Citi Rox 1.4i - Daily
Ex :
2009 Polo 1.8t GTI Stage 2
2007 Golf 5 GTI
2008 Citi Rox 1.4i - Daily
Ex :
2009 Polo 1.8t GTI Stage 2
-
- Captain
- Posts: 2076
- Registered for: 17 years 9 months
- Car Make: VW
- Car Model: MK5 GTI DSG BWA
- Membership No: 1156
- Location: South Of Johannesburg
- Contact:
Re: MKV Fuel problems
Check the following items on the fueling side:
- Cam follower for wear
- What is the actual fuel pressures on the high pressure and rear pump requested and actual?
Does the car have any mods?
- Cam follower for wear
- What is the actual fuel pressures on the high pressure and rear pump requested and actual?
Does the car have any mods?
2012 Dec Mk6 GTI CW DSG - REVO Stage 1
Ex 2008 White Golf 5 Gti DSG REVO3 K04 - Weekend Toy
Regards
Hoosen
072 135 7861
Ex 2008 White Golf 5 Gti DSG REVO3 K04 - Weekend Toy
Regards
Hoosen
072 135 7861
- Jacques1397
- Cadet
- Posts: 659
- Registered for: 9 years 10 months
- Car Make: VW
- Car Model: Citi Rox 1.4i & Golf 5 GTI
- Membership No: 1970
- Location: Nelspruit
Re: MKV Fuel problems
Car has mods - K04Shygolf wrote:Check the following items on the fueling side:
- Cam follower for wear
- What is the actual fuel pressures on the high pressure and rear pump requested and actual?
Does the car have any mods?
Checked follower. All fine. High Pressure pump gets 130+ Bar as needed. Seems like if the low pressure pump gets hot, it starts to struggle. Running at 90% Load on idle. If it cools down overnight / cooler temps. Then the car runs well again ?
Current :
2007 Golf 5 GTI
2008 Citi Rox 1.4i - Daily
Ex :
2009 Polo 1.8t GTI Stage 2
2007 Golf 5 GTI
2008 Citi Rox 1.4i - Daily
Ex :
2009 Polo 1.8t GTI Stage 2
-
- Captain
- Posts: 2076
- Registered for: 17 years 9 months
- Car Make: VW
- Car Model: MK5 GTI DSG BWA
- Membership No: 1156
- Location: South Of Johannesburg
- Contact:
Re: MKV Fuel problems
have you logged your the pressures on both pumps?
2012 Dec Mk6 GTI CW DSG - REVO Stage 1
Ex 2008 White Golf 5 Gti DSG REVO3 K04 - Weekend Toy
Regards
Hoosen
072 135 7861
Ex 2008 White Golf 5 Gti DSG REVO3 K04 - Weekend Toy
Regards
Hoosen
072 135 7861
-
- Lieutenant
- Posts: 1077
- Registered for: 21 years 8 months
- Location: Gauteng
- Contact:
Re: MKV Fuel problems
When checking the follower, check the "plunger" thing. Slightest wear on that surface and you will have a fuel pressure drop as well.
- panic-mechanic
- Panic's Place
- Posts: 26715
- Registered for: 21 years 8 months
- Membership No: 79
- Location: Benoni, putfontein.
Re: MKV Fuel problems
Sound like the low pressure pump can't keep up. have a look at that pressure - should stay at around 5.5 bar odd under heavy foot usage.
Stephan van Tonder - Jhb - Putfontein Benoni
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
'05 Audi A6 3.0L TDI Avant
'09 Touareg 3l TDI
'13 VW CC 2l tdi (repair project)
'05 Touareg v10
Perfect Power dealer. I do dyno tuning.
-
- Enlisted
- Posts: 7
- Registered for: 6 years 1 month
Re: MKV Fuel problems
check fuel pressure and volume how many litres does it pump per minute is it noisy at all