I have an issue with a 2006 Volvo s60 2.5t. It sometimes starts up and drives with no problem, then in some cases it has starting problems - it starts then stalls. It also will turn off during driving in low rpm, in first gear, not on the highway. When I disconnect the airflow meter (MAF) there is no problem.

I purchased an aftermarket MAF and installed it with no improvement.

Any help?