You haven't said anything new yet. Was the battery recently disconnected? Do you have a fuel pressure gauge? If not, you should be able to borrow one from an auto parts store that borrows or rents tools.
The fuel pressure will vary depending on load on the engine but it needs to be at least around 40 psi for the engine to run right.
If you find it's okay, the next suspect would be the MAP sensor. It has the biggest say in fuel metering. When they start to fail they can send the wrong signal voltage, but as long as that voltage stays within the acceptable range, it won't set a diagnostic fault code.
Saturday, June 28th, 2014 AT 9:03 PM