
2017 P0203
2nd code I've seen now. First one didn't throw a light but came up on the obdeleven scanner then went away. Anything I can look at in the app to determine if the injector is failing? Haven't had any rough idles or misfires. Fuel economy seems unchanged. Sitting at 100k miles. Never done a walnut blasting so maybe it's time for that? Timing stretch was fine a couple weeks ago at -1.5.