P0171 on a Nissan Rogue
P0171 means system Too Lean (Bank 1). On the Rogue, a few causes come up far more than others.
What P0171 usually means on a Rogue
P0171 shows the Rogue adding fuel to correct a lean mixture. As on other Nissans, a dirty or failing MAF sensor is a leading cause, along with vacuum and intake leaks. Fuel trims climbing well into positive double digits confirm it, often with a rough cold idle. A MAF cleaning or a smoke test resolves most cases.
Most common causes on the Rogue
- Dirty or failing MAF sensor
Nissan MAF sensors are a known weak point; a contaminated one leans the mixture.
- Vacuum or PCV leak
Cracked hoses are common lean causes on aging Rogues.
- Intake or air-box leak
Unmetered air after the sensor drives trims lean.
- Weak fuel delivery
A failing pump starves the engine under load.
What P0171 costs to fix on a Rogue
Cleaning the MAF is nearly free and sometimes fixes it; a replacement is a moderate Nissan part. A smoke test to find leaks is the smart next spend. Fuel-pump faults are the pricier, less common cause.
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 Nissan Rogue
Related symptoms
Nissan Rogue problems & recalls by year
Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0171 behavior is covered on the main P0171 page. Confirm with a scan tool before buying parts.
P0171 on your Rogue?
Every problem becomes a Case. Tell Redline what your Rogue 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.