Hey all. I have a ‘98 OB with an EJ22 swap. Engine has about 160,000 miles. Has been getting increasingly bad mileage after I bought it about 2 years ago. Its now down to about 15 miles per gallon in town. I don’t drive like a madman either. Seems like its running a little rough too. Ive recently cleaned the air filter, sprayed the MAF and its plug with QD contact cleaner, cleaned the spark plug wire connections, and checked that the PCV is working. Clogged fuel filter? Bad anti knock sensor? Any suggestions appreciated.