Nissan Rogue P0300
TL;DR
P0300 is a random/multiple-cylinder misfire on the Rogue, usually caused by tired ignition coils or spark plugs, sometimes by lean fuel trims, vacuum leaks, or a weak fuel pump. Treat it as high priority.
Why P0300 shows up on the Nissan Rogue
The Rogue's 2.5L QR25DE four-cylinder engine (and the 1.5L variable-compression KR15DDT in newer models) uses one ignition coil per cylinder sitting directly on top of the spark plug. As these coils age and heat-cycle, one or more can weaken at the same time, which the ECM reports as a random misfire across multiple cylinders rather than a single-cylinder code like P0301. High-mileage Rogues that have gone past the spark-plug service interval are the most common candidates.
Model-typical causes and rough likelihoods
- Worn or fouled spark plugs (about 35%) — often overdue on Rogues used for short city trips.
- Failing ignition coil(s) (about 30%) — heat and vibration commonly kill coils around and after 80,000 miles.
- Vacuum or intake leaks / lean condition (about 15%) — a lean mixture makes several cylinders misfire together.
- Fuel delivery issues (about 10%) — weak fuel pump, clogged injectors, or dirty fuel.
- Other (about 10%) — carbon buildup (notably on direct-injection engines), EGR faults, or low compression.
Owner tips before you spend money
Check for a rough idle, flashing check-engine light, hesitation on acceleration, and reduced fuel economy. A flashing light means active misfire is happening right now and you should stop driving hard. Because the Rogue's coils and plugs are easy to reach, many owners replace all spark plugs as a set first, then swap coils only if a specific cylinder keeps flagging. Always use the OEM-specified plug and gap.
Typical repair costs
Replacing all four spark plugs commonly runs $120–$260 at an independent shop. A single ignition coil is often $90–$220 installed; a full set is more. Diagnosing and fixing a vacuum leak or fuel-delivery problem varies widely, typically $150–$600 depending on the part.
Summary
| Code | P0300 |
|---|---|
| Meaning | Random/multiple cylinder misfire detected |
| Severity | High |
| Can I drive? | With caution — get it fixed soon |
| Most common cause | Worn spark plugs or failing ignition coils |
| Typical repair cost | $120–$260 (plugs); $90–$220 per coil |
Full diagnostics
For the complete step-by-step diagnostic and repair guide, see P0300 — full diagnostics.
Frequently asked questions
Is it safe to drive my Nissan Rogue with a P0300 code?
Driving a Nissan Rogue with P0300 is risky and should be limited to short, gentle trips to a repair shop. A random multiple-cylinder misfire lets unburned fuel reach the catalytic converter, which can overheat and permanently damage it, turning a modest coil-or-plug repair into a costly converter replacement. If the check-engine light is flashing, the misfire is active and you should avoid driving until it is fixed.
What is the most common cause of P0300 on a Nissan Rogue?
On the Nissan Rogue the most common causes of P0300 are worn spark plugs and weakening ignition coils, especially on higher-mileage vehicles past their spark-plug service interval. The 2.5L QR25DE engine uses a coil-on-plug design, so when coils heat-cycle and fade together the ECM logs a random misfire across multiple cylinders instead of a single-cylinder code.
How much does it cost to fix P0300 on a Nissan Rogue?
Fixing P0300 on a Nissan Rogue typically costs between $120 and $260 for a full set of spark plugs, or roughly $90 to $220 to replace one ignition coil installed. If the misfire comes from a vacuum leak or fuel-delivery fault, expect around $150 to $600 depending on the part. Diagnosing the exact cause first avoids replacing parts you do not need.