engine problem! part2 help needed

[Mihnea]

Originally posted by timucin
did you know that from the beginning?

WAUZZZ8CZSZ000803

No, I wasn't quite sure of it because I thought the RS2 would be different, but then I remembered about a friend having the same problem...

So I think now you don't have any boost anymore after 4800 RPM, right? no N75 signal means no boost... or do you have good boost and no power?

This could then mean that the engine is pinging beyong anything and that the ECU is retarding the advance, though I doubt it's that... it would have to happen at various engine speeds, not 4800 RPM sharp.

[timucin]

this car was making 14-15 psi continous and 20 peak
now it makes 20-22 continous and 25-26 peak.
noone touched it happened by itself?!?!? and started doing this stuff
i couldnt go next to my car today so i dont know exactly if there is boost over 4800 but thats what he told me on the phone. will be sure tomorrow cause its 01.00 here now i cant call him to get exact details

[timucin]

at the begiinin there was no boost over 4800, he blocked dv valve and told me that we have boost now but no power

[Mihnea]

Originally posted by timucin
at the begiinin there was no boost over 4800, he blocked dv valve and told me that we have boost now but no power

You have to check yourself if you have boost or not, but one thing is sure, you'll very quickly ruin your turbo by running those boost levels with no diverter valve installed (blocked off hoses).

HTH,

Mihnea

[timucin]

ok will check everything tomorrow and post the results but still i dont understand one part

how come car decided to b0ost more by itself?
from 14 to 22
from 20 peak to 26 peak?

i dont understand this part

is there any explanation to this?
thnx

[Mihnea]

Originally posted by timucin
ok will check everything tomorrow and post the results but still i dont understand one part

how come car decided to b0ost more by itself?
from 14 to 22
from 20 peak to 26 peak?

i dont understand this part

is there any explanation to this?
thnx

The bypass/diverter valve was certainly leaking under boost. The problem is that when this is happening, you're overspinning the turbo and can break it in very short time (I've BTDT in my early 20vt motoring days, when I didn't even think I'd become a tuner a few years afterwards).


Cheers,


Mihnea

[timucin]

[timucin]

where is this cam position sensor and what is the part number? do you think i can fix the fault just by chancing that sensor?
cause i ve cleaned a sensor in the plastic cover in front of the engine before
by an advice..

[timucin]

last position: mechanics decided that ecu is wrong and they started or will start rebuilding ecu?!?!?they told me a crystal part is burned.i have no idea about these stuff, i am just watching actually i stopped going next to the car and waiting a call from them if they can fix...

by the way i got help from germany and my friend says a part under this pointed stuff can be broken. now i am trying to find out the name and the part number of this part

[Mihnea]

Timucin, definitely try to avoid a mechanic poking around your ECU, he could screw it up and have you buy a new one just because he can't find another way, so please forget this. This is a sensor/hardware issue, your ECU has nothing to do with this!!!!!!

Otherwise, yeah, I can sell you an RS2 ECU if you want it....


Cheers,


Mihnea

[timucin]

ok i did;
noone touched the ecu
removed the hks blow off
everything turned back to normal,as they were
but also the fault,it turned back

so everthing is same with 30 days ago
car goes protection at 5000 tacho/4800 machine rpm and i ve tried eveything i can but couldnt solve.

-audi services
-famous mechanics
-tuning companies
-internet help

wasnt able to solve my problem here in turkey.....

decided to cover the with a tent for some time....

[timucin]

i took the car back from the mechanics; its worse....


i also removed the boost gauge ( i dont know why...)

there is no power now ,cant see the boost but its like turbo is not working ,no rpm cutt of ,completely gone

[APNess]

Check fuse 24, though if that had gone you would also have an idle speed of around 1100rpm.

PJ

[timucin]