my cel came on this sunday the trans when shifted into drive makes a hard jerk and this only happens when shifting to drive. also i scanned the car and i came up with P0102, P1128, P1137 for codes. I tried cleaning the MAF but the codes are still there and there are no visible vacuum leaks. Help Please

2000 A4 1.8T quattro

 

Here's the codes (found in Search):

P0102 (MAF wiring short to ground) - self-explanatory
P1128 (Long Term Fuel Trim Multiplicative, Bank 1 System Too Lean) - look at MAF or for inlet/exhaust leaks or hose leaks
P1137 (Long Term Fuel Trim Add. Fuel Bank 1 System Too Rich) - people have had this code and fixed it by cleaning or replacing the MAF

It may be that the MAF itself is bad. If there's another AFer local to you, you could see if that person would swap MAFs with you, clear the codes, and then see if they come back - if not, replace the MAF.

 

ya a new mass air flow fixed the problem and there was also a vaccum line comming off the fuel pressure regulater.