NefMoto

I Ran a log with vag Com today on my 2002 Audi A4 1.8T and i noticed that my boost is not going over 190 mbar on there. All that i have is an HKS airfilter on there. I know the turbo is spooling up because i can hear it and when i let off the throttle the diverter valve makes its flutter sound. And the more the turbo spools the louder the flutter. But i dont know why im not showing boost. the car's idle does dip like 50 or so RPM's When idling Which i think is the coolent temp sensor. i did run scans and it showed one thing coolent temp sensor at radiator outlet signal to small P1290-002- lower limit exceeded. any help would be greatly appreciated. I Have also Attached the log. thank you

Check hw replace sensor and check for leaks  dv sounds suspicious.

With me7 it will retard the idle ignition timing at idle with a leak  sorry on phone so didn't see log.   But it's a good tip.

Thank you. And yes i plan on changing the sensor after the new year. But i also just noticed that the privious owner did the spark plug defouler on the down stream o2 sensor. Do you think that could be a problem. Cause i have seen this before and it seems like people do this to beat the P0420.

Firstly, VAG-COM logs suck.  Get ME7Logger working, it's much better.

You're not logging the correct variables, you're logging the MAP sensor.  You need to log Requested/Actual boost.

If you have a code stored for a hardware issue FIX it.  Don't guess, don't stab in the dark.  Log temperature when it's cold, does it make sense?  Does the temperature rise consistently?  I'd replace it anyway.  OEM or don't bother.  Skimping on non-genuine sensors is a total waste of money.

Spark plug defouler?  If the secondary O2 removed?  Replaced with a spark plug (because that fits the hole)?  Is it still plugged in? Has it been coded out in the software?

Fix the hardware first.

I think he just means the spacer (shit) trick.

Let us know how you get on with the hardware. :)

Log block 114

Compare specified to corrected load

E_tm limits desired load, corrected will most likely be much less than specified due to your CTS code.

LDRLMX

Yes it was the spacer trick. And i will be replacing the temp sensor tomorrow and i think im going to just replace the o2 sensors while im in there. Also does me7 not work on windows 10 cause i try to open it and it just opens a little cmd window for a sec and then closes and does nothing. Sorry to be so noobish. I am very savvy with cars but these audi's are a whole nother animal. Thank you for all your inputs i will try all of that and let /ou guys know what happens when i get the logger to work.

Pressure test intake


It isn't a GUI app.

I wrote a little cmd prompt starter guide in the noob zone,  it might help.   

you mean the drag and drop command line guide?  thanks for that.   :P

Lol