battenberg
Well-Known Member
dont rule out that the TD5 is a fly-by-wire using a rheostat mechanisim on the throttle pedal
disco_steve
New Member
Hi,
Mine will sometimes do this as well, it revs up to 3000 happily, and if I continue on at about 3200+ it coughs and spluts almost like a petrol misfire !!
Once it gets past about 3500 it's fine and then will rev smoothly up to the rev limiter (not something I do regulalry by the way)
Talking the the main dealer it was their opinion that it's the air flow meter, which is the first 'gadget' in the air intake after the filter box, aparently they are very prone to failure !!!
Haven't got around to changing yte, just keep to a 3000 rev limit, better for fuel mpg anyway !!!!!
Mine will sometimes do this as well, it revs up to 3000 happily, and if I continue on at about 3200+ it coughs and spluts almost like a petrol misfire !!
Once it gets past about 3500 it's fine and then will rev smoothly up to the rev limiter (not something I do regulalry by the way)
Talking the the main dealer it was their opinion that it's the air flow meter, which is the first 'gadget' in the air intake after the filter box, aparently they are very prone to failure !!!
Haven't got around to changing yte, just keep to a 3000 rev limit, better for fuel mpg anyway !!!!!
disco_steve
New Member
Could be, but the intersting thing is that in low range, the throttle re-maps to allow for bumpy terrain (and a jumpy right foot) and it still does the same at 3000 rpm
disco_steve
New Member
Thanks for the tip, never thought of the throttle, I'll give it some attention and see if it changes anything
battenberg
Well-Known Member
the question just made me think of scalextrix as a kid and the controler would always get kinda worn at a particular point...
may not be anything to do with it... who knows??
just thinking outside of the box..
may not be anything to do with it... who knows??
just thinking outside of the box..
disco_steve
New Member
Ah . . . maybe i will check the little copper wire brushes underneath to make sure the're making good contact as well then
battenberg
Well-Known Member
yeah...good call...and how come I always get the crapy slower car when we play at your house???
disco_steve
New Member
Cos mine's the one with the motor outta the Mr's hairdryer in it
(and yours has the double sided sticky tape round the wheels )
(and yours has the double sided sticky tape round the wheels
)
bellautos
Active Member
use a multi meter on the air flow meter to find GND and a main voltage feed , ,
There is 1 more wire left this is signal out. The middle one if my memory serves me correctly.
Measure from the GND to the signal out and you should have 1.5-2Volts at tickover.
Under hard fast rev you should see 4-4.4Volts, if you only see around 3volts the maf is dead, and this is common the td5.
Unplugging a maf that is only out of calibration and NOT totaly dead normaly dont show any difference.
There is 1 more wire left this is signal out. The middle one if my memory serves me correctly.
Measure from the GND to the signal out and you should have 1.5-2Volts at tickover.
Under hard fast rev you should see 4-4.4Volts, if you only see around 3volts the maf is dead, and this is common the td5.
Unplugging a maf that is only out of calibration and NOT totaly dead normaly dont show any difference.
