2003 - B2300 Pickup 2.3 engine 145000 miles.

number one cyl. won't fire.

injector is good-coil pack is good-compression is good- leak down 14%
no ECU codes. Timing marks are spot on. lifters and cam are good. no vacum leaks. spark to plug is correct- spark plug is good. injector timing is good. Have taken every thing from #1 and switched with #3, 3 will fire but not 1. Mazda Tech support has no idea whats wrong.

Has anyone had this problem? if so how did ya fix it.

Thanks. Lynn