before i take it into the woods with a gallon of petrol

pipe n slippers · 19th December 2016, 14:33

50k miles cdt is as flat as a NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-.
wont rev beyond 4k with no load.
if i flick the synergy on it makes a difference, but not much.
new bosch maf fitted (ECP not an ebay cheapie)
new pumps fitted 18 months ago
new injector, others checked.
disconnecting the maf makes it driveable.

any ideas or is it a box of matches time

Davey1991 · 19th December 2016, 14:59

Sounds like a faulty maf if disconnecting it helps. Time to go back to ECP with an receipt I'd say.

Sent from my D5803 using Tapatalk

raykay · 19th December 2016, 15:02

I've had a similar problem - turned out to be a faulty fuel rail pressure sensor.

marinabrian · 19th December 2016, 15:22

Burn it with fire, or disconnect the EGR actuator solenoid, and make sure the MAFAM is turned OFF

Then see how it goes

Failing that, I know how to make these things go a little faster

Brian

Mike24 · 19th December 2016, 15:55

Could also be a leak in the intercooler pipework or radiator. Symptoms seems to vary somewhat from car to car, but I have read of similar problems being down to blown intercooler O rings or leaks elsewhere in the system. Smokey exhaust, particularly on heavy acceleration is another indicator.

pipe n slippers · 19th December 2016, 16:33

Quote:

Originally Posted by marinabrian

Burn it with fire, or disconnect the EGR actuator solenoid, and make sure the MAFAM is turned OFF

Then see how it goes

Failing that, I know how to make these things go a little faster

Brian

disconnected the vacuum feed pipe to the EGR when problem first occured.

local garage was/is MGR specialists and have a T4.............just no-one there has actually used it, covered in dust in the corner.

tomorrow they get to blow the dust off it

trikey · 19th December 2016, 16:45

Quote:

Originally Posted by pipe n slippers

tomorrow they get to blow the dust off it

Get it bought!

COLVERT · 19th December 2016, 17:20

Quote:

Originally Posted by pipe n slippers

disconnected the vacuum feed pipe to the EGR when problem first occured.

local garage was/is MGR specialists and have a T4.............just no-one there has actually used it, covered in dust in the corner.

tomorrow they get to blow the dust off it

There have been factual reports of a failing crank sensor which shows itself by not allowing the engine to rev correctly.

Rare but has happened.

Quote:

Originally Posted by pipe n slippers

50k miles cdt is as flat as a NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-.
wont rev beyond 4k with no load.
if i flick the synergy on it makes a difference, but not much.
new bosch maf fitted (ECP not an ebay cheapie)
new pumps fitted 18 months ago
new injector, others checked.
disconnecting the maf makes it driveable.

any ideas or is it a box of matches time

Don't bother about the matches----

Just send me the map co-ordinates of the car.

Mike Noc · 19th December 2016, 17:37

Does it rev freely with the MAF disconnected? If not try unplugging the LP fuel pressure sensor - it is the plug on top of the fuel filter.

If it then revs freely let us know and I'm sure with a few pointers you can get it sorted.

pipe n slippers · 19th December 2016, 17:55

with the maf disconnected it's better (ie driveable) but still a bit (lot) weak. trouble is i have to go up a big hill to get home and without a decent run at it it's 30 all the way up, otherwise i'd put up with 25mpg and 80 flat out

19th December 2016, 14:33	#1
pipe n slippers Regular poster 75 estate Join Date: Dec 2012 Location: faaaaarest of dean Posts: 44 Thanks: 0 Thanked 1 Time in 1 Post	before i take it into the woods with a gallon of petrol 50k miles cdt is as flat as a NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-. wont rev beyond 4k with no load. if i flick the synergy on it makes a difference, but not much. new bosch maf fitted (ECP not an ebay cheapie) new pumps fitted 18 months ago new injector, others checked. disconnecting the maf makes it driveable. any ideas or is it a box of matches time __________________ now that food has replaced sex in my life, i've got trouble getting into my own pants!

19th December 2016, 17:55	#10
pipe n slippers Regular poster 75 estate Join Date: Dec 2012 Location: faaaaarest of dean Posts: 44 Thanks: 0 Thanked 1 Time in 1 Post	with the maf disconnected it's better (ie driveable) but still a bit (lot) weak. trouble is i have to go up a big hill to get home and without a decent run at it it's 30 all the way up, otherwise i'd put up with 25mpg and 80 flat out __________________ now that food has replaced sex in my life, i've got trouble getting into my own pants!

19th December 2016, 14:59	#2
Davey1991 Avid contributor MG ZT Join Date: Sep 2016 Location: Bingham, Nottingham. Posts: 240 Thanks: 66 Thanked 39 Times in 28 Posts	Sounds like a faulty maf if disconnecting it helps. Time to go back to ECP with an receipt I'd say. Sent from my D5803 using Tapatalk

19th December 2016, 15:02	#3
raykay I really should get out more....... Now Other Manufacturer Join Date: Nov 2006 Location: Co. Kerry Posts: 2,786 Thanks: 16 Thanked 310 Times in 283 Posts	I've had a similar problem - turned out to be a faulty fuel rail pressure sensor.

19th December 2016, 15:22	#4
marinabrian MG ZT Join Date: Jan 2011 Location: Newcastle Upon Tyne Posts: 20,151 Thanks: 3,565 Thanked 10,837 Times in 5,718 Posts	Burn it with fire, or disconnect the EGR actuator solenoid, and make sure the MAFAM is turned *OFF* Then see how it goes Failing that, I know how to make these things go a little faster Brian

19th December 2016, 15:55	#5
Mike24 Loves to post Rover 75 CDTI Auto Saloon Connoisseur SE Join Date: Apr 2015 Location: Coventry Posts: 358 Thanks: 166 Thanked 67 Times in 56 Posts	Could also be a leak in the intercooler pipework or radiator. Symptoms seems to vary somewhat from car to car, but I have read of similar problems being down to blown intercooler O rings or leaks elsewhere in the system. Smokey exhaust, particularly on heavy acceleration is another indicator.

19th December 2016, 17:37	#9
Mike Noc This is my second home Rover 75 CDT Manual Connoisseur SE, Rover 75 CDT Automatic Connoisseur SE & a Freelander Td4. Join Date: Jul 2009 Location: Hampshire Posts: 11,548 Thanks: 3,470 Thanked 3,119 Times in 2,247 Posts	Does it rev freely with the MAF disconnected? If not try unplugging the LP fuel pressure sensor - it is the plug on top of the fuel filter. If it then revs freely let us know and I'm sure with a few pointers you can get it sorted.