Oxygen Sensor for 1990-1997 Infiniti Q45 & More - Bosch 13091

Bosch 13091 oxygen sensor for the 1990-1996 Infiniti Q45 V8 4.5L, the 1997 Q45 V8 4.1L and other vehicles measures the oxygen in the exhaust and reports the air-fuel ratio to the ECU. This Bosch O2 sensor is a heated narrow-band type that helps the ECU hold stable combustion control and helps reduce emissions.

• Reaches operating temperature in under 10 seconds, so the ECU gets a signal quickly for closed-loop control
• Withstands exhaust gas up to 1,880°F
• TSP coating resists vibration, corrosion and contamination
• Integrated heater element and a metal housing
• Part of the Bosch Switching-Type Oxygen (O2) Sensors line

Quick facts

• Part: Bosch 13091 oxygen sensor
• Fits: the 1990-1996 Infiniti Q45 V8 4.5L, the 1997 Q45 V8 4.1L and other vehicles
• Position: Upstream, upstream left, upstream right
• Material: Metal (housing)
• Condition: New

A check-engine light, a rough idle or poor fuel economy can mean an oxygen sensor is wearing out. An exhaust leak, a vacuum leak or a damaged connector can be behind those symptoms too, so find the cause before you buy a sensor.

Fits

It is also an oxygen sensor for the 1990-1996 Nissan 300ZX V6 3.0L and the 1986-1987 Nissan 200SX 4-cylinder 1.8L, a direct-fit replacement for these vehicles. This listing is one sensor; on a car with an upstream sensor on each side, each side takes its own.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included.

Installation notes

• Threads come with pre-applied conductive anti-seize.
• The connector is a direct fit for quick installation.