PO300 Code
So recently I installed Berk resonated test pipes and it sounds great but the car is idling erratically.
It idles at 1000-1100 rpm when warm and every so often it drops to ~800 rpm then goes back up.
The code it's throwing is PO300. Any suggestions on where to start ? The car run fine once I get up to speed but it seems slower than normal.
What should I do?
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