so I got a cylinder 7 miss fire I changed the spark and coil its stills miss fires I asked around they said to listen to see if the fuel injectors were ticking they are... so the other thing is the computer bad any info if it is a computer or some help would be nice its a 2000 Ford f150 5.4

 

Do a compression test on the cylinder, you want a minimum 100 PSI, get a noid light to see if the computer is sending the pulse signal to the injector, if compression is good and you are getting a blinking noid light double check the ceramic part of the spark plug and make sure it didn't get cracked on install, if all of that checks good swap the coil with another cylinder and see if the missfire code follows it, if it does then you have a defective coil.

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thank you ill try those I did change the coil to another one and it didn't follow so ill try the other ones thank you again