2.4td auto loss of power/ running rough

[neil mathews]

seems to be a frequent issue- many items on the web. but advice welcome before I dive in with the spanner !
my surf had a new head kit maybe 5 years ago, I have owned is for 6 months. Always starts albeit rough, picks up well above 2.5K revs, turbo boot light comes on at 2K revs, but below that- utterly gutless. So much so that I have to use low box to get moving off a slope because from stationery, and below 2K revs, it more or less sits at tickover. So low box to get pff the slope, back into high box, creep forward as revs climb then OK acceleration after 2k or so revs reached. Have changed fuel and air filters. It is definately running enevenly. Guess not air in the system cos always starts, and runs fine at higher revs when air problems may make it worse. So that leaves fuel starvation maybe ? Is there a lift pump in the tank - maybe a filter blocked on the tank supply ? Injectors ? (done about 120K miles) OR something to do with the EGR valve ????
advice please- what to start with !

[pauly]

seems to be a frequent issue- many items on the web. but advice welcome before I dive in with the spanner !
my surf had a new head kit maybe 5 years ago, I have owned is for 6 months. Always starts albeit rough, picks up well above 2.5K revs, turbo boot light comes on at 2K revs, but below that- utterly gutless. So much so that I have to use low box to get moving off a slope because from stationery, and below 2K revs, it more or less sits at tickover. So low box to get pff the slope, back into high box, creep forward as revs climb then OK acceleration after 2k or so revs reached. Have changed fuel and air filters. It is definately running enevenly. Guess not air in the system cos always starts, and runs fine at higher revs when air problems may make it worse. So that leaves fuel starvation maybe ? Is there a lift pump in the tank - maybe a filter blocked on the tank supply ? Injectors ? (done about 120K miles) OR something to do with the EGR valve ????
advice please- what to start with !

do a diagnostic self test on her there is a tread on here that will help u all u need is a piece of wire to bridge 2 connection on the diagnostic plug and count the times the engine light on the dash flashes and the tells u the fault code numbers there should be a reference with the tread

sounds like its the throttle position sensor or crank sensor
but the test will tell u what it is
good luck mate

[neil mathews]

thanks, would those affect across all revs, ? Because it seems OK above 3K revs goes well enough. It is picking up from idle under load when theres no power. If I knock it into neutral it revs up fine, back into drive, nore or less stays on tickover hence resorting to low box...

[pauly]

ok check this tread out
http://www.hiluxsurf.co.uk/forums/sh...ad.php?t=14898

maybe this may b ur prob??????
did u do a test???