Keep the powertrain reading manifold pressure accurately with the Standard Ignition Manifold Absolute Pressure (MAP) Sensor AS81. It measures pressure inside the intake manifold and reports it to the vehicle's electronic control unit, giving the ECU the data it uses to manage fuel delivery and timing. It's a direct-fit replacement for a range of 1997–2001 Nissan and Infiniti applications, and Standard specifically engineered this sensor for high-mileage Nissan and Infiniti vehicles.
Wiring harness, mounting hardware, brackets, and O-rings are not included. Country of origin: United States.
Fitment: 1997-2001 Infiniti I30 [V6-3.0L], 1997-2001 Infiniti Q45 [V8-4.1L], 1998-2000 Infiniti QX4 [V6-3.3L], 1997-1999 Nissan Altima [L4-2.4L], 1998-2001 Nissan Frontier [L4-2.4L], 1999-2001 Nissan Frontier [V6-3.3L], 1998-2001 Nissan Maxima [V6-3.0L], 1998-2000 Nissan Pathfinder [V6-3.3L], and 2000 Nissan Xterra [L4-2.4L, V6-3.3L]. See the Buyer's Guide tab to confirm your vehicle.
Manufacturer part number: AS81.
This part cross-references / interchanges with the following part numbers:
What does this MAP sensor do?
It measures the absolute pressure inside the intake manifold and sends that data to the electronic control unit, which uses it to help manage fuel delivery and ignition timing.
What are signs this MAP sensor may need replacing?
Rough idle, hesitation, poor fuel economy, or an illuminated check engine light can be signs. These symptoms have other causes too, so diagnose the fault before replacing.
Does it come with a wiring harness or mounting hardware?
No. The wiring harness, mounting hardware, brackets, and O-rings are not included. It has a single rectangular plug-in connector with three male blade terminals.
Which vehicles does the AS81 fit?
It fits various 1997-2001 Nissan and Infiniti models, including the Altima, Frontier, Maxima, Pathfinder, Xterra, I30, Q45, and QX4. Check the Buyer's Guide tab to confirm your vehicle and engine.
Where is this sensor made?
Its country of origin is the United States, and Standard Ignition states it is designed and manufactured in North America.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
