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kinginfamous5 · 07-27-2020, 12:22 AM

Hey everyone, 2013 FRS Im ready to throw this car away. I started to get the coil pack issues, specifically with coil number 3. The Subaru Service Bulletin said to replace the wiring harness and coil packs to 2015 harness. I read a lot of people had great results with just repining the harness with 2015 connectors, I went that route. Took off the harness and repined the 4 coil connectors. Reinstalled everything and the car idled great. I let it idle for about 30 minutes to make sure it was fine before I drive it. Well after 30 minutes CEL came on. Scanned it and now P0390 & P0391 comes up, cleared it to see if it was a fluke and popped up immediately. Swapped sensors to see if the problem moved but no, stayed in the same bank and sensor. So I spliced in about a foot of new wires and a new connector. Still the same thing.
Any ideas?

07-27-2020, 12:22 AM	#1
kinginfamous5 Junior Member Join Date: Jul 2020 Drives: 2013 Scion FRS Location: Kentucky Posts: 3 Thanks: 0 Thanked 0 Times in 0 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Camshaft Hey everyone, 2013 FRS Im ready to throw this car away. I started to get the coil pack issues, specifically with coil number 3. The Subaru Service Bulletin said to replace the wiring harness and coil packs to 2015 harness. I read a lot of people had great results with just repining the harness with 2015 connectors, I went that route. Took off the harness and repined the 4 coil connectors. Reinstalled everything and the car idled great. I let it idle for about 30 minutes to make sure it was fine before I drive it. Well after 30 minutes CEL came on. Scanned it and now P0390 & P0391 comes up, cleared it to see if it was a fluke and popped up immediately. Swapped sensors to see if the problem moved but no, stayed in the same bank and sensor. So I spliced in about a foot of new wires and a new connector. Still the same thing. Any ideas?