The Quick Answer above is the generic definition. What follows is the model-specific detail for the Nissan models that log P0132.
DTC/P0132·Nissan
P0132 on Nissan: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Nissan
P0132 on a Nissan means the upstream oxygen sensor on bank 1 (before the catalytic converter) is reporting a voltage above what the engine computer accepts. On a conventional narrowband sensor, even a very rich mixture only takes the signal to about 0.9 V, so a reading held higher usually points to a short to voltage in the wiring or a failed sensor rather than rich running. While the code is set, the engine computer cannot trim the mixture properly, which raises fuel use and emissions.
Typical repair cost, all makes€45 - €400
Connect any standard Bluetooth OBD2 adapter to your Nissan and Skanyx tells you what P0132 means on that engine, whether it is safe to keep driving, and what the fix should cost. Free on iPhone and Android.
Get Skanyx freeWhat does P0132 mean on a Nissan?
Nissan Altima
2007-2012On the 2.5 QR25DE Altima sensor 1 is an air-fuel ratio (A/F) sensor, a wide-range sensor with its own heater, not a switching narrowband sensor, so the 0.9 V rule does not apply. Nissan's service manual sets P0132 when the A/F signal computed by the engine control module is inordinately high, and its checks cover the sensor's power supply, the ground and an open or short in the signal wiring before the sensor itself.
What causes P0132 on a Nissan?
Beyond the generic causes listed on the main P0132 page, these are the patterns noted for Nissan models:
Nissan AltimaOpen or short in the A/F sensor 1 signal wiring
Nissan AltimaPoor ground or power supply to the A/F sensor 1 circuit
How to diagnose P0132 on a Nissan with OBD2
Follow these steps to pinpoint the root cause of P0132:
- Read every stored code and the freeze frame. Rich fuel trim codes (P0172), misfire codes or MAF codes change the picture and should be looked at first
- Find out whether your engine has a narrowband or a wideband (air-fuel ratio) sensor in this position. The voltage figures in the next steps apply to narrowband sensors; a wideband sensor is read as a lambda value near 1.00 on a generic OBD2 reader
- With the engine fully warm, watch the bank 1 sensor 1 signal. A narrowband sensor that sits above about 1 V is not reporting a real mixture. Then lift off the throttle from about 2,500 rpm in gear: the fuel cut on overrun should drive a working narrowband signal below 0.2 V within a second or two. A signal that stays high is a circuit or sensor fault
- Compare the reading with the fuel trims. Strongly negative long-term trims with a sensor that still switches point to a real rich condition; normal trims with a signal pinned high point to the circuit
- Unplug the sensor with the key on and watch the live value again. If the high reading stays with the sensor disconnected, the fault is in the harness or the engine computer, not the sensor
- Inspect the harness along the exhaust for melted insulation that has joined the heater feed to the signal wire, and check the plug for water, green corrosion or bent pins
- If the wiring is sound and the trims are normal, replace the sensor with one that matches the original part number, clear the code and confirm that the signal now switches normally on a warm engine
How much does P0132 cost to fix on a Nissan? (EUR)
Estimated repair costs for P0132 in EUR, compiled across makes. Nissan costs typically sit in the middle of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0132
These codes are often seen alongside P0132 or point to related issues, on any make:
Looking for the full P0132 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0132 guideSkanyx · Nissan
Diagnose P0132 on your Nissan
Your car logged P0132. Skanyx reads it on any standard Bluetooth OBD2 adapter, tells you whether it is safe to keep driving, and shows the €45-€400 repair range so you know the number before a shop quotes you. Free on iPhone and Android, and you do not need to be a mechanic to read it.
Get Skanyx free