Engine Misfire
Code P0301
Cylinder 1 Misfire
Plain English Meaning:Cylinder 1 is misfiring causing uneven engine operation
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Red: Stop Driving & Tow
Severe misfires can cause major damage
P0301 Symptoms
- •Rough idle shaking loss of power
Most Common Causes of P0301
1Spark plug coil injector compression issue
P0301 Repair Playbook
Required Mechanic Tests
A qualified shop should perform these tests before replacing any parts to ensure they aren't guessing:
Swap coil inspect plug compression test
Typical Fix Paths & Estimated Costs
Replace coil or plug injector repair $100–$1200
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Parts for P0301 Repair
Common replacement parts for engine misfire codes. (Paid links)
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