Good morning all!
I need some help confirming an issue we are having with our 1999 Forester, 2.5 automatic, 128,000 miles.
We had the head gaskets done 2 weeks ago and everything turned out fine. Yesterday, however, the check engine light began flashing then went to steady-on. I pulled the codes and one was P1325 and the other was P0304. The P0304 showed up just prior to us doing the head gaskets, too. With the gasket job, we did complete timing belt kit (the one highly recommended Gates kit from Amazon), new gaskets all around.
Research last night shows the P1325 indicates a faulty knock sensor, which can possibly cause a misfire, rough idle and poor fuel mileage. The car idles horrible at idle, but smooths out at cruising speed. The fuel mileage seems bad, as well.
Any thoughts? Thanks in advance.