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Your thoughts please
Andy B - 13/5/10 at 09:03 AM

Not a bike engine so I am totally stuffed -
My daughters Peugeot 306 HDI turbo iesel has developed a fault which has brought on the management warning light.
Had the fault read at two different garages and both said TPS so replaced it with a new item but the fault and management light persist.
Symptoms are just a complete lack of power,when you accelerate it will just slowly pick up revs. I was wondering about the Airflow meter but thought I would see if the people on here had experience of this kind of problem.
Any opinions would be appreciated
Many thanks
Andy


Lars - 13/5/10 at 09:12 AM

last time i had this it was a broken map sensor (only due to transport of the engine) and MAF sensor.

Once I replaced the map sensor it was still sluggish, but improved lots when I disconnected the MAF sensor.
Then replaced it, with a new MAF, and all was good.

That said, IIRC the broken MAP sensor gave a TPS error.
Maybe a vaccum hose has come loose?

[Edited on 13/5/10 by Lars]


SALAD - 13/5/10 at 09:34 AM

Agree with above. Disconnect the sensors in turn and give it a little drive to pin piont the problem then replace.
Mine was the MAF if I remember correctly.


coozer - 13/5/10 at 09:37 AM

Had a similar lack of power and revs due to a knackered MAF.

£260 from the rover place, £46 for the same bit from a Mercedes dealer


skinned knuckles - 13/5/10 at 09:48 AM

quote:
Originally posted by Lars
last time i had this it was a broken map sensor (only due to transport of the engine) and MAF sensor.

Once I replaced the map sensor it was still sluggish, but improved lots when I disconnected the MAF sensor.
Then replaced it, with a new MAF, and all was good.

That said, IIRC the broken MAP sensor gave a TPS error.
Maybe a vaccum hose has come loose?

[Edited on 13/5/10 by Lars]


+1


grub - 13/5/10 at 10:36 AM

i thought you would have stuck a bike engine in Andy while you had the bonnet up.


russbost - 13/5/10 at 12:20 PM

Blocked air filter, blocked fuel filter or the intake air hosing collapsing under vacuum - not taking the wee, I've seen the obvious missed many a time!


Andy B - 13/5/10 at 04:35 PM

Many thanks for all the suggestions - spot on with the MAF sensor - unplugged it and went like a scalded cat again so new sensor ordered up
Cheers
Andy