Could be a relay….
Could be a faulty crank and / or cam sensor
Or something else.
Does the ECU have any codes stored?
See if any of these help : https://www.google.com/search?source=univ&tbm=isch&q=2010+Titan+5.6+relay+location&client=firefox-b-1-d&sa=X&ved=2ahUKEwjF8eKSuMXpAhUnmHIEHTVMCNMQsAR6BAgHEAE&biw=1366&bih=693
- This reply was modified 8 months ago by Richard Kirshy.