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Would a clogged gas filter cause check engine light to go on?

A dirty or clogged fuel filter can reduce fuel flow and fuel pressure, which can lead to a number of potential issues, including:

- A decrease in engine performance

- Stalling or hesitating

- Rough idling

- Engine surging

- The check engine light coming on

So a clogged gas filter could indeed cause the check engine light to come on.

If your fuel filter is clogged, you should replace it as soon as possible.