magpie31 said:

does anyone know the size of the bolt or part number so i can get a new one

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How did u get on? I notice my car struggles uphills now at motorway speeds.... If ur tryin to pass someone and then the road inclines up, the car begins to slow even with foot down and it becomes very difficult.....grrr

i gave up on it it now up for sale if anyone want a project

magpie31 said:

i gave up on it it now up for sale if anyone want a project

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Ah rite, shame mate.... Come november ill be takin a weekend to really investigate and try and sort mine out

good luck trying to find out what is wrong

Sure stay part of the forum, ill be looking at mine in the next few weeks and hopefully sorting it!!

not nice to see cars get better of people
did you get the part bolt out? or replacement bolt sorted?

sussexa said:

not nice to see cars get better of people
did you get the part bolt out? or replacement bolt sorted?

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yeah got the old one out and a new one fitted. Normally i would keep at it with the car but i need it everyday for work so just could not keep doing it

is this still the issue with the car not reving past 3000rpm with a new MAF? and yet once the MAF is unplugged it can rev past 3000rpm? If so and sorry if it isn't, the MAF is a proper Bosch or original MAF and not a clone or bought cheaply for say £50.
Normally if the car wont rev past a certain rpm but does rev past without the MAF connected it points to something to do with the MAF directly or indirectly....its not unheard of to get a dude MAF new.....

Unplugging the maf extends revs marginally but not anywer near normal. Plus ud think if the maf was throwing out of range values its gonna flag a fault code

Just to update everyone on how i got on, only got looking at mine yesterday & today. Issues solved by the way.

Just to sum up my issues first, car was slow to rev up in low rev range - this was cured by blanking off EGR.

Had a problem also where car wouldnt rev past 3000 rpm; on a level road in 5th gear top speed was around 80mph with foot flat to floor, revs would only go to just below 3000 rpm. If you came to a hill and foot flat to floor still, car would slow down to around 70 or below, revs would drop to about 2500 rpm and just wouldnt go any higher.

If in a lower gear say 3rd or 4th if you held revs as high as they would go (approx 3000 rpm) then EML would come on and generate code P0236. Under normal driving though you could avoid this. Average MPG was around 45mpg, ill keep an eye and see if it now improves any - technically it should if black smoke is reduced etc.

So last night i removed the hose from the turbo to intercooler - was all covered in a thick oily grease. I cleaned it up and inspected it and couldnt identify any leaks. I covered the entire length in 2 layers of gaffa tape to test and refitted, power seemed to be improved, but still couldnt rev past 3000 rpm. I dont think the pipe was leaking but it may have leaked a little at either end or something.

I should note there was little difference with the MAF unplugged, it revved a little higher however there was little power near 3000+ rpm.

Anyway i removed the MAF to investigate and the cage/mesh ends of it had heaps of black stuff and bugs etc stuck to it. So i cleaned it all as best i could with electrical cleaner etc and refitted - problem now totally cured, revs on past 3000 rpm with ease and no hesitation and continues to pull right to red line. As i said before when i unplugged the MAF before it made little difference, but obviously even with default values it still wont let you rev too high with boost if it cant measure the airflow properly.

I was also experiencing a lot of black smoke and im fairly sure that is now significantly reduced as well.

Hope this helps someone else in their quest for power.