03 accord not starting
 

My car sounded like it was trying to start. I know it's not the battery, starter or alternator. I need to know what is going on. please help

Have you checked to see if you have fuel supply to the rail and checked to see if you are getting spark. You need to supply us with more details. Sometimes it is the one little detail that people don't post that is the one that is the tell tail sign of he issue. Is it son auto or a manual. It could be as simple as a park switch or clutch switch is bad.

Confirm engine is turning over fine, but no engine start?

good luck

The engine doesnt start. It sounds like its about to start then just dies out

1. Is this a 4 or 6 cylinder?

2. How do you know it is not the battery, starter or alternator?

3. When you try to start the car, does the immobilizer indicator light come on for a few seconds then go out or does it keep blinking?

Ok. You really need to supply more info, otherwise if you want to throw parts at it then I would recommend the ignitor be replaced and the PGMFI relay be replaced as well. I am not being rude but as a mechanic it is impossible to diagnosis the issue given the information. It could also be a bad ignition switch or any number of things. I am relatively new to this site but I have found that the amount of people here that want to help out others is great. Bottom line is there are many knowledgable people on this forum and someone might be able to help you. Please provide more details.