Originally Posted by Disco Mike

In the future, don't wait on checking a code, or it could cost you big time. Also, you get them read, you don't just clear them and expect the problem to go away, get all the fault code numbers, write them down and send them to us so we can help you.
Yes, if you had a 734 code along with other lean or rich codes, you may need a new MAF, and if so only buy a new Bosch with matching part numbers, not an after market or generic, that usually won't work.