2011 Sonata fuel issues
Senior Member
Joined: Sep 2013
Posts: 2,895
Need a capable scan tool.
If, however, the engine barely runs, there is a good chance the Hi press pump is defective. If it has no fuel pressure at all chances are low press pump.
Most engines will manage to run , barely, with just the low press pump.
If, however, the engine barely runs, there is a good chance the Hi press pump is defective. If it has no fuel pressure at all chances are low press pump.
Most engines will manage to run , barely, with just the low press pump.
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