Review on Hitachi Auto Products VTS0003 Water by Jason Flippen

2008 Infiniti G35. After changing spark plugs, coils, valve covers, gas cap, a couple of fuel cleaners, an oil change and reprogramming the ECU and having misfires at idle and around 3000 rpm, I still had no check engine light. Replace those solenoids (there are 2 of them) and there will be no more misfires and the car will run better than ever. I've been trying to fix my car for over a year, I hope this helps someone.