What does code P0302 mean on a Toyota and is it safe to drive?
P0302: Cylinder 2 Misfire Detected. Here's what it means on your Toyota, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
The PCM has detected a misfire on cylinder 2. Same logic as P0301, but for a different cylinder.
Common causes for your Toyota
- Worn or fouled spark plug on cylinder 2
- Failing ignition coil
- Leaking or clogged fuel injector
- Low compression on cylinder 2
Symptoms
- Check Engine Light
- Noticeable shaking, especially at idle
- Loss of power or hesitation
Typical fixes
- Replace spark plug/coil on cylinder 2
- Clean or replace injector
- Address internal engine problems if compression is low
Repair cost range
For a Toyota, repairs for P0302 often fall between $150 and $900, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Toyota
P0302 on Toyota 2AZ-FE and 1ZZ-FE engines most commonly comes from a failed coil or fouled plug on cylinder 2. On 2AZ-FE engines, oil consumption from worn piston rings can foul cylinder 2 plugs prematurely—check for blue smoke at startup before replacing the coil.
Most commonly affected models
Camry 2AZ-FE 2002–2011Tacoma 2TR-FE 2005–2015Corolla 1ZZ-FE 2003–2008