Scanned the car again yesterday due to still running like poo.
Bank 1 Sensor 2 Lambda code came up again. I thought my Audi only had B1, Sensor 1 as it only has one sensor before cat and none after it?
The MAF had a fault code (but that was due to me running the car with it unplugged to improve driving it!)
Took the MAF off the car yesterday and cleaned it.
Also, the dreaded Throttle Body dtc had come back on (Thought it was too true to be good!)
Anyway, after cleaning the MAF and took the car for a very short drive and it was back to being smooth.
However, started car this morning and revs dropped every time i touched the throttle to set off, after a min or so, set off from my drive and car seemed well. Pulled me up the incline in 3rd without hesitation about 3mins from the house.
I got 15mins down the road, dipped the clutch to drop a gear or two approaching a roundabout and the car just stalled! Fired straight back up but i had to keep the revs on between gear changes. A mile down the road dipped clutch to see what would happen and straight away it stalled. Unplugged the MAF, started car and drove rest of the way to work with no problems at.
On the way home, during gear changes, if i let the engine drop to idle, it would idle very low but without dash lights coming on and never stalled once.
Car is now down to 19-22mpg driving around with DIS saying AVG is 24. Yet over a week ago it the dis was showing the AVG at 34!!
I removed the wire to the throttle body and cleaned with electrical contact cleaner. Although it looked nice and clean with no dirt in there.
Any other pointers guys?
I'm going to get another MAF from somewhere hopefully at the weekend. Will check the plugs on Thurs morning.
Getting bit peeved with this Audi now.....really don't want to sell it as when it's right, it's a lovely motor!!