Member Since: 08 Dec 2009
Location: South West France
Posts: 49
Lack of power on motorway
Run the kids to school in this car daily without any lack of power, no fault codes, everything hunkey dory, then hop on the autoroute to Toulouse and after 20 minuites (or there abouts) there is no acceleration at all. Just like the throttle pedal does nothing. There is a small pick up, and knock down of gear but nothing like it should be. No black smoke or strange noises etc.
Switch the engine off at Toulouse, and the return trip on the same road is fine with no problems.
This very same scenario has happened on several occasions lately
Egr blanking plates fitted, intercooler hoses replaced (apart from the short one connected to the turbo). 180,000 kms on the clock. 2005 model.
Anyone any ideas or similar problems?
Cheers
Phil
7th Mar 2015 5:28 pm
roastbeef
Member Since: 08 Dec 2009
Location: South West France
Posts: 49
Fault codes
Just checked with the IID tool and the following fault codes are logged in the engine menu
1/4 P0401 eng gas recirculation insufficient
2/4 P2199 intake air temp 1/2 correlation
3/4 P006A unknown
4/4 P006A unknown
All these faults are logged at 0km which is strange, but they must have occured in the last 3 months since I last cleared the log
7th Mar 2015 5:55 pm
geoff.
Member Since: 24 Jan 2010
Location: West kent
Posts: 8531
P006A
Manifold absolute pressure – mass or volume air flow correlation
7th Mar 2015 8:21 pm
roastbeef
Member Since: 08 Dec 2009
Location: South West France
Posts: 49
Thanks Geoff, I checked through the whole air intake system for leaks, and found a loose jubilee clip on the air box connection, so after tightening this I thought I had fixed it. The car has been running fine since, but I hop on the motorway again today, and the same problem arises, so maybe I have a faulty mass airflow meter? (dont know how to test this) or other options are fuel filter ( recently replaced with non oem) or fuel pump.
Engine restart does temporarily fix the problem, but then after a few miles it seems to go into limp mode again.
This problem only happens on the motorway, normal driving is fine.
Is there a sensor for the EGR system that may put the engine in limp mode?
Bit stumped now, I'll check the latest fault codes tomorrow
Cheers
Phil
22nd Mar 2015 12:06 am
roastbeef
Member Since: 08 Dec 2009
Location: South West France
Posts: 49
TDV6 fault codes
P0299-00(68 ) unknown
P006A-00(28 ) unknown - (something to do with air flow)
P140A-00(28 ) Engine gas recirculation sensor c circuit low.
I think I can ignore the EGR fault as I have removed the valves, but P0299 ? anyone know?
I did think that after buying this iid tool it would at least tell me what the fault code means!, not just say "unknown" maybe I have to pay extra for that!
Cheers
Phil
22nd Mar 2015 3:07 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
From memory the P0299 is the turbo underboost. So turbo, intercooler, sensor or hose in declining order of cost.
I can double check later when I get to my computer, but someone will confirm.
Land Rover - Turning Drivers into Mechanics Since 1948
It is indeed Rob. Current: Discovery 3 06MY (55 reg) HSE Auto Zambezi Silver Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
Freelander 2 2007 HSE Manual Tambora Flame
Previous: FL2 56 reg SE Manual Black (written off )
Disco 3 06 reg B7S Manual Rimini Red
Disco 2 TD5 Y reg ES Manual Blue - Chipped
Several Discovery 300 TDis
22nd Mar 2015 4:38 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Using the forum search tool:
Robbie wrote:
MAP & turbo codes:
P006A00
MAP - Mass or Volume Air Flow Correlation
-Air leakage in intake path between turbocharger and engine
-MAP sensor circuit high resistance
-MAP sensor circuit short circuit to ground
-MAP sensor circuit short circuit to power
-MAP sensor failure
-ECM failure
Check the intake air system for leakage after the turbocharger. Refer to the relevant workshop manual section. Check the MAP sensor and circuits. Refer to the electrical guides. Refer to the warranty policy and procedures manual if a module is suspect.
P029900
Turbocharger A Underboost Condition
-Air leakage, post turbocharger
-Manifold absolute pressure (MAP) sensor circuit high resistance
-MAP sensor circuit short circuit to ground
-MAP sensor circuit short circuit to power
-MAP sensor failure
-Exhaust gas recirculation (EGR) fault
-VGT actuator fault
Check for a post turbocharger air leak, for additional information, refer to the relevant workshop manual section. Check the MAP sensor and circuits. Refer to the electrical guides. For EGR valve tests, refer to the relevant workshop manual section. Check for DTCs indicating EGR or VGT actuator faults. Refer to the warranty policy and procedures manual if a module is suspect.
Surprised that this code is still missing from the IIDTool as thought it was addressed last year. If you find a missing code email GAP so they can fix it. Although the way they provide the plain language decode is due to change this year, which will help.
Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 08 Dec 2009
Location: South West France
Posts: 49
Thank you Rob, its nice to have friends like you!
Phil
23rd Mar 2015 10:22 am
roastbeef
Member Since: 08 Dec 2009
Location: South West France
Posts: 49
Fuel pump drawing 3.9A
My LP fuel pump is drawing 3.9A on ignition on, and when engine running. This does not seem a lot as it is protected by a 25A fuse. This could be the problem?
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Allisport Fast Road Intercooler, V8 Brakes, Silicone IC Hoses, EGRs Blanked, Remapped, De-Cat pipe, FBHIC
