After speaking to my mate from halfords he said there is current going to it but the butterfly bit does not change when reved or anything just says flat so fully open ? So he recons that someone has blocked off the egr value and set the pump advance to make it go faster instead of replacing the expensive sensor.

Fault codes,

- 17849 EGR Value, open Circuit to ground

- 19557 Swurl flap motor open circuit to ground.

Edited 18 December, 201213 yr by banburybeetle

Well I think its great you have finally found the fault. I personally think that f-ing around with the EGR is a bad move, I don't think people really understand what they are doing when they block them off!

I would try and put it back to how it was when it left the factory as much as possible. I would have a read about the part that has the butterfly valve, is that the swirl flap? Have a look at what it does, before deciding to replace it. Regarding the warranty, you might be able to use the line of "the car has been modified and I don't think its safe / can't insure it".

I've just reread your post. If the MAF is dead then it will definitely need sorting, I would see if you can repair it then if not get a 2nd hand one.

Hello again if he has the car done by Friday morning I will test drive it and see how to goes. If there no improvement then i will ask for a refund.

THe SDI doesnt have a Mass Air Flow has the air temp in the side of the air box then thottle body sensor further up. I really do hope its the throttle body

Im not sure about that I just found an old post where an SDI owner had replaced the MAF? Also I think they would be very cheap 2nd hand.

Edited 19 December, 201213 yr by Dunkuk

http://www.briskoda.net/forums/topic/165027-misfiring-on-an-sdi/

This is interesting as it says there is no MAF, sorry that last link must be wrong, this guy found an air leak in the fuel line and had your symptoms.

http://www.honestjohn.co.uk/forum/post/index.htm?t=89177

Yeah i know read that one lol

Edited 19 December, 201213 yr by banburybeetle

What about this one?

http://www.briskoda.net/forums/topic/239961-19-sdi-engine-braking-problem/

Also the sensors are very cheap on ebay, £30 so I suggest cleaning it up and then perhaps replacing it if it is dead.

Yeah read that one lol thats to do with curse control . I wish there was a specialist in vw in my area :(

Update the dealer replace the part, but no change :(. So there looking at the CAT and the accelerator pedal.

Tried without CAT, with no joy. Said he will be looking at fuel pump solenoid next.

I've been following this thread for a while and am rather baffled as to why it runs out of steam in 5th but not in the other gears. Has anyone checked whether the brakes are binding? My thought is that the higher torque in the lower gears would overcome binding brakes but in the higher gear there is insufficient torque to overcome the binding. This would also apply if there is something in the engine that is binding, this scenario would explain the fast drop in revs on changing gear.

"am rather baffled as to why it runs out of steam in 5th but not in the other gears"

It doesn't have a turbo thats why, if you look at the torque curve for a turbo engine the torque comes in when the turbo comes in ie about 1700 revs. It was traditional to change down to go up hills in most older cars.

I've been thinking a little bit about this engine and it is so simple that there isn't much to go wrong (famous last words)

There is no MAF or throttle body just a big "hole" where the air gets sucked in. The throttle is connected to the mechanical fuel pump which squirts fuel in via the injectors. So, yes looking at the fuel supply would be a very good place to start. I had a fuel pump go an a petrol car and it took me a long time to work it out. The car was great unless you needed lots of fuel for more than a few seconds, eg going fast or going up a hill then it was like you were on half throttle.

"So, yes looking at the fuel supply would be a very good place to start. I had a fuel pump go an a petrol car and it took me a long time to work it out. The car was great unless you needed lots of fuel for more than a few seconds, eg going fast or going up a hill then it was like you were on half throttle."

If it is a fuelling issue it should be apparent in all gears if you try to hold 3000 rpm for a significant period, not just in 5th.

The torque curve is so flat on the SDI from 2000 to 3000rpm that there should be no trouble holding a steady speed on motorways, even up anything other than steep hills, by applying a touch more throttle, which is exactly how both my SDIs behave.

I wouldn't say its just 5th, it slow in every gear, even when I put it in 4th on the m40 it just about holds 60 mph with foot flat to the floor. I think its the fuel pump as it has yellow marking all over it (second hand?).

Thank you Peter3197, dunkuk and everyone else I do really appreciate your help. I will ring the dealer tomorrow. and get a update.

The torque curve is so flat on the SDI from 2000 to 3000rpm that there should be no trouble holding a steady speed on motorways, even up anything other than steep hills, by applying a touch more throttle, which is exactly how both my SDIs behave.

Say im in 5th at 65mph about 2,000 rpm, I know theres a hill coming up in a few minutes so I put my foot to the floor to get it to 80 (not 88 lol), as soon as I hit the incline/ hill revs start to drop down to 4th, foot flat to floor just about holds 60mph.

Another example in Banbury there are a few hills if you know them, from Banbury(southam road) to little bourton. Steepish hill have to put it in 2nd but it wont go any faster than 30mph. This is the same with the new handwell hill bit in banbury as well.

Having looked at the Southam rd on street view I reckon I would be in 4th doing better than 40 mph. Have you ever been up Rockingham Hill near Corby, 12% at it's worst, I have to drop to 3rd but can hold 30+mph the whole way. Foot flat to floor should not be necessary and on motorways I rarely come out of 5th.

Having looked at the Southam rd on street view I reckon I would be in 4th doing better than 40 mph. Have you ever been up Rockingham Hill near Corby, 12% at it's worst, I have to drop to 3rd but can hold 30+mph the whole way. Foot flat to floor should not be necessary and on motorways I rarely come out of 5th.

Hey Peter3197, I have not been up Rockingham Hill near Corby. The hill between junction 11 going to junction 10 on m40 I have to put it in 4th just about holds 60 mph same with the hill just after junction 8a on M40.

From speaking to the previous owner they had the same issue and looks like they may driven for about 6 months. :(

I've not used the M40 much but my memory and looking at street view tells me that I wouldn't be out of 5th between 11 and 10 doing the legal limit.

I've not used the M40 much but my memory and looking at street view tells me that I wouldn't be out of 5th between 11 and 10 doing the legal limit.

Thank you Peter, Will ring the dealer today and see progress, if nothing will ask for refund ask its been like this since day one.

Just rang different owner answered advised they have changed some of the injectors, he said he thinks it made a difference Then he went on about saying you know the warranty is void if you took it else where...Well the piece of paper which just said 30 warranty said nothing about that and it has only checked it over and its been like that since day one. Will be calling back later for a update,

Another update (Like the never ending story). apparently its a bit better they have replaced in in order, Clutch, Throttle Body, 4x Injectors, EGR value. The gentleman asked to look up on-line to see how slow these cars are (that year of one, are the 2000 year model slower?), as he kept saying they are slow. Anyway going to the dealer tomorrow to see how the car goes and will go from there. It would be nice to have a identical one to test against

Also From looking at my video are they meant to be that loud.

Personal I think the timing belt slip at one stage and has been driven a lot and caused some damage.

Edited 21 December, 201213 yr by banburybeetle

Well the only bits left are the fuel pump (easy to test so they should have done that) and the injector pump (expensive).

I drove from Leicester to just south of Reading yesterday along the M1, A43, A34, M4 with 2 other people and a boot full of luggage. I used 5th all the way. The only bit I slowed down was the big hills around the Ridgeway on the A34 just north of the M4, I needed my foot to the floor in 5th and the car gradually slowed from 70 to 60 when I got to the top.

Like I have said before the best test is a max speed run, should get to 95 or 60-70 on the flat in 5th which should be about 6-7 seconds.

hey Dunkuk, Just checking are all 4 injectors feed by one injector pump? then a fuel pump feedS the injector pump?. I have had 80 out of her the dealer said they have had it to 100mph.... but I have not done a max speed test on it yet. I don't mind if its sensors etc as long as somehow I can rule out it being bottom end (Pistons etc).

If anyone is near me location wise to aid I would really appropriate it, and will involve free tee coffee and fry ups lol.