[Oxxon]

Thanks for the add.

I just inherited a 2016 Spark with 140k miles. The poor car was neglected most of its life. The scanner is giving me a p0303 code. I already replaced the fuel injectors, spark plugs and ignition coils. I'm still getting a misfire. Any help on what the problem could be?

Thanks in advance.

 

[Browneye]

Burnt valve? Maybe get it scanned by a proper diagnostics tech?
Did this get resolved?