hesitation at 3k after 710's and N75 replacement

[dubwhizz]

ok, ive replaced the 710s and the N75 valves and the hesitation that was there and went has come back. get it in pretty much all gears, but it feels stronger in third (or do i just boot it more in third?) and i think the car os pretty much down on power cos of it, as it feels quick, but not amazing.

any thoughts as to what to look for before i go and shock myself with VAGCOM tonight?

oh and anyone know where the horn is on the B5? Mine seems strangely silent.

Matt

[Blue_Thunder]

The horns are by the passenger intercooler. You can test the output in Vagcom (make them 'honk') I think.

Have you done a pressure test?

[dubwhizz]

thanks chap. how do you get to them? from underneath im guessing?

no tools with which to do a pressure test. are head gaskets a likelihood at 119k miles?

Matt

[dubwhizz]

ive just realised from hibs thread that my car needs a MAF. it did the stutter at 5.5k thing on friday evening so tonight im vag comming and looking for a MAF. hopefully this will clear it up.

Matt

[Blue_Thunder]

You should be able to get to your horns by removing the inner wheel arch with your wheel at full lock.

[Virdee Autos]

There are 2 horns on the B5 (low tone and high tone), and one of them does usually stop working.

One ain't working on mine aswell at the moment

[Blue_Thunder]

I only had the high horn for a while. Could fart louder!

[ogg14]

Hi there... I was just wondering where you bought the n75 valve and 710,s from... I also want to replace then both but havent got a clue where to buy... and how much did you pay?

Please let me know...

Andy

[Nige_RS4]

Hi there... I was just wondering where you bought the n75 valve and 710,s from... I also want to replace then both but havent got a clue where to buy... and how much did you pay?

Please let me know...

Andy

you can get these from any audi dealer or cheaper at www.vagparts.com if you are prepared to wait a week or so.

[ogg14]

Cheers Nige

Andy

[dubwhizz]

vagparts delivered to me in 3 days which was most useful.

is the S4 MAF the same as the RS4 MAF?

Matt

[Virdee Autos]

No RS4 MAF is different AFAIK.

[Blue_Thunder]

RS4 MAF is bigger.

[Bluebrakes]

The differences between them are:

1. S4 has air box clips. RS4 is screwed into air box.
2. RS4 is generally longer than s4.
3. RS4 reads higher than S4 (s4 reads upto around 300 and RS4 reads to something stupidly high (4??).
4. RS4 does not have metal wire air straightener inside

Don't think you can just plug in an rs4 maf and it will work properly either. Although it will, it won't work as well without a proper re-map.

[dubwhizz]

S4 MAF ordered from GSF for 50 notes plus vat via a friend.

will try and fit in the dark tomorrow and let you know if it fixes it!!!