Code P0300 problems

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Misfire codes P0304, P0300 Solved

Toyota Tacoma 2006 DCSB 4.0 PreRunner 294000 miles

Flashing check engine light. Recurring P0304. Replaced spark plug and coil pack on cylinder 4. Occasionally, will throw P0300.

Am I potentially having fuel injector issues rather than electrical?

NBTXMEDREP from United States 6 months ago

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Same issue here

2 reports

Tols from United States 3 months ago

Same issue and a little rough idle

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NBTXMEDREP from United States 3 months ago

Had mine professionally diagnosed and repaired by a Toyota-specialized independent shop.

It was spark plugs…

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Best answer (according to NBTXMEDREP)

NBTXMEDREP from United States 3 months ago

Situation resolved. Spark plugs.

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