P0301 on a Honda CR-V
P0301 means cylinder 1 Misfire Detected. On the CR-V, a few causes come up far more than others.
What P0301 usually means on a CR-V
P0301 isolates a misfire to cylinder 1 on the CR-V. The fastest check is to swap the No. 1 coil to a neighboring cylinder and watch whether the code follows. On the 1.5T, rule out fuel dilution too, since diluted oil can present as one weak cylinder before spreading. Left running, a single misfire overheats and can damage the converter.
Most common causes on the CR-V
- Failed coil on cylinder 1
Coils fail individually; the fault follows the coil when swapped.
- Fouled or worn plug
A lone fouled plug sets a single-cylinder code near its service interval.
- Fuel dilution presenting on one cylinder (1.5T)
Diluted oil can weaken combustion in a single hole first on the L15B.
- Injector or compression fault
A clogged injector or low compression localizes the miss.
What P0301 costs to fix on a CR-V
Cylinder 1 is easy to reach on the CR-V's transverse four, so a coil swap is quick and inexpensive. Diagnosis is cheap via a swap test. Only a compression problem escalates the cost.
Year, engine and mileage change the answer. Start a case and Redline weighs these causes against what your car shows, then names the check that would settle it.
Other codes on the Honda CR-V
Related symptoms
Honda CR-V problems & recalls by year
Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0301 behavior is covered on the main P0301 page. Confirm with a scan tool before buying parts.
P0301 on your CR-V?
Every problem becomes a Case. Tell Redline what your CR-V is doing: it shows what the evidence supports, what’s still missing, and what to check next, before you approve a repair.
“Inner pad ~1 mm. Outer pad 3 mm.”
Next: check the slide pins move freely before buying parts.