Car stalls on start-up. Requires multiple tries after stall to get started

Is there a Check Engine Light on? if so codes stored in the computer in your car will indicate what area to look at first. A scan tool is required to retrieve codes stored. Stalling and failure to restart could be caused by many things. A vacuum leak, a malfunctioning idle air control valve excess fuel too many things to guess at without being able to experience the problem first hand or do some basic diagnostic test to determine what is really wrong.

If you have other car keys on your key ring that have chips in them--they will shut you down---remove other car keys from your keyring and the restart--

same exact car same exact problem. suspected main relay. no codes no other visable issues. another garage replaced the fuel pump and filter, to no avail.

Just to let you know your not alone on this issue. Same car same issue. I'm now experiencing this for the 2nd time. Mine only 2-3 times needed to get the engine to run. The last time it happened I tolerated it for several months, until the ignitions switch locked out, (the key wouldn't turn ). Had to have the car towed to the only to have it sit at the dealer for 7 days to get a new ignition switch (had to order from Sweden) and $500 later it worked until recently, AGAIN!!!!! Go Volvo to having a great electrical system. Maybe I'll try my backup key to see if the chip is the issue, once again. Anybody know of any other solution......please share. Randy California