The first thing to do is have the trouble codes pulled and see what comes up. Advance Auto and Auto Zone do this for free.
You should also check the fuel pressure. Test gauges are available at the aforementioned auto parts stores on a loaner basis. The test port is on the fuel rail and the test kit will come with adapters.
The fuel pressure at idle should be 36 PSI. To check the fuel pressure regulator, disonnect the vacuum line runnning from it to the intake manifold and the fuel pressure should rise to 44PSI.
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Wednesday, November 23rd, 2011 AT 12:26 AM