alexchannell
New Member
Hi Everyone,
This is my first post so sorry if I have done something wrong.
I have a 2006 freelander sport 2.0d auto.
Normally the car is fine it has done 121,000 miles and regularly serviced.
Recently the power in the car has been lacking massively, as I drive down the road the engine can splutter and sometimes stall. The engine can take upto a minute to start with or without throttle pedal depressions, and there is abit of black smoke from exhaust along with a hunting idle.
So far I have done the following:
Installed a blanked EGR valve and cleaned surrounding components- very little difference made
Cleaned the crankcase breather filter - no difference.
Replaced fuel filter - no difference
cleaned maf sensor - no difference
Replaced fuel rail pressure sensor - no difference.
When I had diagnostics on the car the only fault code found was fuel rail pressure sensor error - fuel rail pressure sensor voltage low.
I can hear the fuel pump next to the fuel filter working and I'm confident it is not that however if feels like a fuel delivery problem.
Does anyone know of any common fault or think of something I have missed?
Finally I have one more question, with the maf sensor disconnected car runs exactly the same. However I thought this was weird so I compared to my 225+bhp golf gttdi and this is the same. It may be a stupid question but how come the maf/map sensors make no difference? are the engines ECU's compensating and running the engine and if so if an engine runs the same without them then why do we need them?
Thanks for you comments in advance!
This is my first post so sorry if I have done something wrong.
I have a 2006 freelander sport 2.0d auto.
Normally the car is fine it has done 121,000 miles and regularly serviced.
Recently the power in the car has been lacking massively, as I drive down the road the engine can splutter and sometimes stall. The engine can take upto a minute to start with or without throttle pedal depressions, and there is abit of black smoke from exhaust along with a hunting idle.
So far I have done the following:
Installed a blanked EGR valve and cleaned surrounding components- very little difference made
Cleaned the crankcase breather filter - no difference.
Replaced fuel filter - no difference
cleaned maf sensor - no difference
Replaced fuel rail pressure sensor - no difference.
When I had diagnostics on the car the only fault code found was fuel rail pressure sensor error - fuel rail pressure sensor voltage low.
I can hear the fuel pump next to the fuel filter working and I'm confident it is not that however if feels like a fuel delivery problem.
Does anyone know of any common fault or think of something I have missed?
Finally I have one more question, with the maf sensor disconnected car runs exactly the same. However I thought this was weird so I compared to my 225+bhp golf gttdi and this is the same. It may be a stupid question but how come the maf/map sensors make no difference? are the engines ECU's compensating and running the engine and if so if an engine runs the same without them then why do we need them?
Thanks for you comments in advance!