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So I have a 2003 Subaru Impreza 2.0l turbo I purchased this car not that long ago and wanted to make it pass smog and get it all legal for CA roads, got cats and new sensors as in o2 sensor. Installed all those waited to smog it so I could get some miles on the cats when I was ready to go smog it I started it let it warm up to a good temp as I started taking off the engine light came on. I stopped listened to it and didn’t think of much I took it over to the smog place and he said cylinder 2 was miss firing. So I took out the old spark plugs and coil packs replaced with brand new ones and still had the engine light I then got 1 new injector for cylinder 2 installed it and the light is still on my next step would probably be a new map sensor or maf sensor that and resetting the ecu can anyone help me try to figure out what’s happening?
 
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