From time to time, I was asked about the misfire/hesitation issue and after checking the obvious things such as the spark plug, IG coil, O2 sensor, etc, one of the thing to be checked is the fuel supply. On the ECU software, there is no fuel pressure related adjustment for the fuel timer calculation ...
Although I never experienced any Fuel Pressure issues in the past, decided to replace the pressure regulator this time. ...
Updated 01-06-2012 at 10:51 PM by Kaz-kzukNA1