rs2 engine problem!(help)

[A80Avant]

when a new member who is in the market for s2 and asked the question,what is best aby or 3b.what does the mejority say,forget aby and by yourself a 3b motor? no.
almost everyone tells them to forget 3b and buy themself a aby
i can't believe,today people actually sticking up for 3b.

Let it go already! The fact this car has a 3b motor has nothing to do with the 3b you are thinking of. It has coils which actually are better than the adu ones and has vems. So its not a distributor run engine. No worse than aby/adu then.

[AndyP]

OK, you've asked for this, next person that post's on this thread, not about Fatiii's problem, gets it

[fatiii]

İ dont care whether it is rs2 or not. My aim is to make this car. That is why i need your help. İ have been struggling to fix this car for years. And in turkey it is not easy to find proper parts of rs2 motor. That is why i changed motor. What i need is only help.

İ thank to the friends that want to help me and want to see the map. İ will send the records of the map as soon as i got them. My mapper is out of town.

Vems explaind this situation as:
Flywheel dowel pin being pushed too far into the flywheel (one sensor reads this pin)
Aftermarket (Non Audi) Flywheel with wrong size pin or location
Old sensor for flywheel teeth or flywheel pin
Damage to wiring on sensor cable or car harness

And is the problem 3b?today 3b in future adu or any I5 20v turbo engine its not problem for me and thats my rs2

[fatiii]

What is your things for vems explain?

[newsh]

Pull the starter motor and have a look to see if the pin is there.

[Tonks4x4]

My understanding is that with vems if you use the standard size pin it will struggle to read the signal correctly.
You need to make the pin wider to give a good signal

[A80Avant]

That is true. You need to weld a larger pin on the same location of the original by copying the size of the pin a dual mass flywheel has. Before doing that try to see if it works by moving the sensor closer to the pin. Sometimes that works nicely

[fatiii]

ok thanks my friends i will try that and share with you to result

[fatiii]

Silly question maybe but have you got the cam timing out? (did you change the cambelt) On rs2 cam wheel does not align with mark on valve cover on 3b it does

change very little space to sensor and we try all of them but the result is always the same so our thing it is not cam sensor.

[rynaqui]

Could the fuel pump be cutting out because of a bad tune? Or FPR?

[Rusty]

Anyone mentioned the throttle position sensor? I've forgotten to plug it in before and had nearly identical symptoms. Might be the extension wiring is back to front...

[A80Avant]

I did ask at the beginning if the fuel.enrichment and fuel.map is so bad that there is not enough fuel when the throttle is pressed and therefore it stalls. But looking at the video it wouldn't be that abrupt if it was fuel starvation.

The TPS needs to be calibrated with vems when fitting it for the first time as is the wideband and MAT/CLT sensors.

I have to assume that all that was done. If a bad connection exists on the tps it wont calibrate

[veneto rs2]

Stefano, that's Your simple truth.
If you see how many rs2 have been left unmolested then you will realise that you are a minority. Most of s2 rs2 owners see them as highly modifiable and to ME that doesn't make them less of an rs2.

Besides there are a lot of improvements to be made on the original engine and I wouldn't hesitate to do them to just say that its original.

I have seen a lot of original which are not even reaching 240hp. Does that make them more valuable because they are original?

Happy to be in the minority in all honesty.
About tuning the original motor and it's performance it's a narrow path but I consider myself that on historical/collectable basis a chip tuning and a wagner exaust manifold are subtle and accettable, on the other hand changing turbo swapping a motor or such major changing are going to spoil the historical value of the car.
Also I believe every upgrade or change it's less relevant if someone can easily switch back to original.
I agree that everyone has the right to do whatever he wants with his property, again thoug people have the right to say what they think about it, don't them?

And Vasilis I can bet your pretending RS2 will be a lot powerful and faster then mine on a straight line but you know better then me that roads are made up down large and narrow with curves that can go up and down.... some are aiming on the 0/100 or the 0/200...some are aiming at different performances on different enviroments....

But is yours the original engine that came out of the factory fitted to this exact car? if not then I don't consider your car a rs2 as its not how it left the factory (even with the exception of modifications)

Question for you - all these cars with 7a heads on them because they are generally in better condition than adu/aby/3b heads with no cracks etc. If the original heads are too far gone and the only financial alternative is a 7a head does this make them any worse as the heads are better but they are not stamped like the originals.

I'd rather have the better 7a head than a cracked and potentially an expensive failure original head.

My motor it's the original one fitted in the car.
A 7A head comes from the very same moulds as the ADU ones I can't see where the issue stands, while changing the whole layout of an engine (VEMS turbo reverse manifold etc) bay it's an issue IMHO.

Is my Urquattro no longer Urquattro because I've swapped the WX for AAN?

I would have loved to see if you would have done the same if you owned an RR.....
Would you had gone for an ADU swap (RR:959 cars produced and prices from 30.000 euros onward...)
To answer to your question anyway: No your car it's not anymore a Urquattro, simply because Ur in german stands for original

Can the mods clean this thread up?
Fatiii's got a problem with his car, it's not a bitching thread for 6yr old girls.

Agree with you and with this I rest my case, but the discussion was interesting.


Stefano

[A80Avant]

Stefano again you are entitled to your opinion. You are missing the point of the fact being that the audi 80 avant shell that was used for the rs2 is no different than the non rs2 ones in regards to stiffness, rigidity or otherwise. So straight lines or curves any complete transformations will be better than an original. Which means that my pretending rs2 will be better in every aspect you described above from a stock one.

If you want to be a minority you shouldn't be doing even the things that you have. Historical value is lost by the time you do ANY modification. And believe me what you have done cannot be taken back. Remember to have a different map you have your ecu soldered and that means even if you fit a stock rs2 map back on, its still tampered and opened.

[prj]

Remember to have a different map you have your ecu soldered and that means even if you fit a stock rs2 map back on, its still tampered and opened.

You don't actually in all cases, they are sometimes socketed from factory

But regardless, can we please stop the circle jerking and help this person?
It's an Audi with a 5 cylinder in it, so he's come to the right forum, no?
What the hell is up with this bull5hit attitude?

On topic:
Has anyone received his VEMS config and taken a look at it?
Would it be possible to make some logs and see if there are trigger errors?

Although the fact that it runs on idle and then completely dies when the throttle is touched makes me think it's a mapping problem (air charge incorrectly calculated) or a physical problem with fuel delivery.

Boost leaks would have little effect on a speed-density based system. It would just be slow, but the fueling would be still correct for the air charge it's getting, because air charge is measured indirectly via pressure, and a pressure reading from the manifold will always be "right" unless there is a problem with the pressure line to the MAP sensor.