[XXXanizamiXX]

Cylinder 4 miss fire
Error code P0108
Circuite high input

Initially it was giving a different code but after reset its giving p0108. After computer reset It was fine for 2 minutes and again started mis firing.

Compression and fuel pressure 160 psi, 40 psi

Map sensor changed
Coil is tested

Mechanic cannot determine root cause please help.

 

[sideburns2009]

If it only does it after then engine has warmed up, it could also be the coolant temp sensor (which usually doesn't give a code). I would say wiring but if it's working after a reset, i'm guessing pulling the battery terminal to reset the PCM, then I wouldn't think it would automatically fix a wiring problem.

EDIT:
http://www.helpforcars.net/obd_codes/codes.php?code=P0108