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OK- here is a new twist. I ordered a new MAP from Subaru, it is to be in soon. Today the wife called me at work and told me it had a dead battery. I came home and jumped it then checked it with my load tester. It is not charging, so next I hooked up the scan tool and had 0 volts with it running. I am not positive but I thought I had a reading before. Can I check voltage on a 2000 with a scan tool? Could a failing alternator cause the issues in the above post? I will pick up a alternator Tuesday.

Thanks to all It runs just fine then it goes into a 5=10 second episode ware it slowes way down and has no power. wife told me it does it more when it is hot and humid. I do not know the brand of coil I put in but the wires are Autolite. the front o2 and plugs are NGK. I did replace the tensioner with the belt . I switched the wires on the bad cylinders with the good ones and we drove to do some running around last pm. It was highway and in town and had no problum. I put in the reader and wached the o2 read out the whole time we were driving. the entire time it was all over from .1 to.9 like a saw tooth. even on cruse on the highway. Is this normal? I think my next step will be wires.

Hi all I am getting frustrated with the wife's 2000 outback. We have spent to much money on it and it still acts up. 210,000 miles I did the heads, adjusted valves, replaced the timing belt last summer. Coil Has been replaced 2 times last time was about 2 years ago with new good wires. started having problems about a month ago, took it to our local mechanic to pull the codes and it was a po420 so I replaced the cats. After that it started to intermittently fall on its face and flash cel, but when the mechanic checked he found no codes. He suggested replacing o2 sensors. I replaced front and back sensors and picked up a Bluetooth code reader. The new sensors did not help and I was now able to get 3 codes - po301, po303, po420. I replaced the plugs, checked the air filter, checked for oil in the plug holes. This morning we took it for a short trip (about 5-10 miles) and it started acting up again as we were parking in a parking lot. we noticed a strong gasoline smell coming from the exhaust. Is it possible that the injectors might intermittently hang open or does any one have any other ideas?