paul_858

TBA's never hurts to do it when you think you have a problem =P

ArandA4

I bet what you did was get rid of the long term fuel trim, which had probably adjusted to keep it rich at WOT (by asking for less air). Take some VAG logs and monitor the trim. I would guess that it will go back to what it was.

Masking some other problem? Perhaps not enough fuel for the air you can push? Fuel filter clogged. Fuel pressure regulator going bad? Injectors clogged?

ex-quattro PETE

1. connect ECU.
2. turn the key, but not the engine.
3. wait 5 minutes.
4. turn on the engine.
5. wait 2 minutes.

Is that it?

BTW, that's not needed if you're just switching between different programs on the same ECU, correct?

[ej257]

Though if this doesn't last, than I will do it again and leave it running for the 2 mins.

[ej257]

Yep, after disconnecting the ECU for a good 5 minutes or so

[ej257]

this is not a permanent fix by any means. The car had been misfiring, I'm guessing the plugs are toast. I wouldn't rule out the injectors at this point.

Time will tell, I don't have a VAG tool and I need to do some follow up logs, as well as the other minor details.

Silver Streakin'

2 mins & 2 mins is enough. You'll hear the clicking stop in the engine bay.

So:

1. disconnect & connect ECU.
2. turn the key to ON position (not the engine).
3. wait 2 minutes (don't touch gas pedal).
4. turn on the engine.
5. wait 2 minutes (don't touch gas pedal).

Yes, it is recommended to do your 2-5 steps when changing programs on the IBE.

Silver Streakin'

you waiting that long, what's another 2 mins? ya goof.

markbradford

Myth. Takes about 20 seconds or until the whining from the TB stops.

markbradford

Otherwise residual memory remains in the ECU - took 3 days without connection to clear for me.