99 Subaru Legacy - Without the sensor idles but does not get over 3k rpm. Ok, my 99 Subaru Legacy Brighton 2.2 will not idle with the Mass Air sensor plugged in, everything behind the cat glows orange if forced to run above 3k rpms and shoots sparks out the tailpipe, without the Mass Air sensor plugged in the car will idle when warmed up but does not get over 3k rpms and get about 12 MPGs. I have no idea what is wrong with it, have replaced the Mass Air flow sensor with 2 different ones, spark plugs, valve cover gaskets, fuel filter, cleaned fuel injector valve, and checked the cat to see if it is plugged. I am desperate as I am moving in 3 weeks. PLEASE HELP!
Tuesday, June 19th, 2012 AT 11:00 PM