My 2003 Harley Davidson supercrew shut down last night leaving my house. It started back up for 2 seconds & shuts off every time I turned the key. I pulled the truck 2 blocks back to my house, turned the key again & started up & kept running. I had been using the truck all day no problems. Could it be the IAC or MAF is dirty

 

Yes, and the fuel filter may be starting to plug up.