DTC P0301 to P0312 Misfire Diagnosis and Fix Hyundai Elantra

This DIY video shows how I used a scan tool with live data to fix a common misfire problem. The actual code was P0304 but this method can be used to troubleshoot any of the codes: P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0309, P0310, P0311, P0312. This car had 17 trouble codes across several modules. Voltage too low was a common compliant from several modules.
XTOOL IP819 OBDII Scanner (I earn a small commission as an amazon affiliate if you click the links below):
amzn.to/3RldW8F Amazon.com
amzn.to/3sW3Wth Amazon.ca
0:00 Intro
0:45 Diagnosis with XTool IP819 OBD-II scanner
0:54 What to do about low voltage codes
1:34 Should the check engine light/ malfunction indicator light (MIL) be lit?
2:00 Live data examination and discovery check engine light should be lit but is dark
3:54 Ignition coil removal and installation
6:15 Retesting the fix and wrap up
Check out my related video "DTC P0010 to P0029 CVVT Valve Solenoids Diagnosis and Testing Hyundai Elantra" • DTC P0010 to P0029 CVV...