How to remove and replace the Mass Air Flow Sensor on Toyota MR2?

Release the spring clip of the Mass Air Flow Sensor electrical connector by prying the spring clips away from the plug and unplugging the electrical connector from the Mass Air Flow Sensor. Using an ohmmeter, measure the resistance between the terminals, ensuring the resistance values between each pair of Mass Air Flow Sensor terminals meet the specified requirements. If the measurements do not match the specified values, replace the Mass Air Flow Sensor. Loosen the clamps and remove the duct connecting the Mass Air Flow Sensor to the throttle body. Loosen the Mass Air Flow Sensor bracket-to-body bolt, remove the bracket-to-Mass Air Flow Sensor bolts, and rotate the bracket out of the way. Remove the air filter housing and air filter, followed by the filter housing-to-Mass Air Flow Sensor bolts, and then take out the Mass Air Flow Sensor. Installation follows the reverse order of removal.

Genuine Toyota MR2 Mass Air Flow Sensor

MAF Sensor Meter

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4 Mass Air Flow Sensors found

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Toyota MR2 Meter Assembly, Intake Air Flow
Part Number: 22250-16020
Product Specifications
- Other Name: Meter Assy, Intake Air Flow; Air Mass Sensor, Mass Air Flow Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1987 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
View related parts
Toyota MR2 Mass Air Flow Sensor
Part Number: 22250-16040
Product Specifications
- Other Name: Meter Assy, Intake Air Flow; Air Mass Sensor, Mass Air Flow Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
View related parts
Toyota MR2 Meter Assembly Intake Air Flow
Part Number: 22250-16090
Product Specifications
- Other Name: Meter Assy, Intake Air Flow; Air Mass Sensor, Mass Air Flow Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1987-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
View related parts
Toyota MR2 Mass Air Flow Sensor Assembly
Part Number: 22250-74220
Product Specifications
- Other Name: Meter Assy, Intake Air Flow; Air Mass Sensor, Mass Air Flow Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA

Toyota MR2 Mass Air Flow Sensor

The Mass Air Flow Sensor in the Toyota MR2 measures the air entering the engine, enabling the control unit to match fuel to that flow. The computer receives data from the Mass Air Flow Sensor, which adjusts the injector on-time in order to maintain the correct mixture in the Toyota intake. It is confirmed that the Toyota MR2 Mass Air Flow Sensor has two designs, a vane air flow meter and a hot wire type. The spring-loaded flap, attached to a potentiometer, is a feature of the vane meter. Movement of the flap will indicate airflow. However, the flap may restrict intake. Furthermore, it can stick if dirt accumulates. The MR2's hot wire version heats a wire in the stream. Incoming air cools the wire, changing the current required to hold that temperature. Thus, the hot wire can provide an accurate flow reading. However, the accuracy can degrade when the wire becomes coated with oil or debris. A faulty Mass Air Flow Sensor may cause the MR2 to hesitate, stall, run too rich or too lean, or display a check engine light. A sealed intake and a clean, reliable Mass Air Flow Sensor are essential to keep a Toyota MR2 running smoothly.

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Toyota MR2 Mass Air Flow Sensor Parts Questions & Experts Answers

Meter Assembly, Intake Air Flow
22250-16020
Q: How to remove and replace the Mass Air Flow Sensor on Toyota MR2?
A:
Release the spring clip of the Mass Air Flow Sensor electrical connector by prying the spring clips away from the plug and unplugging the electrical connector from the Mass Air Flow Sensor. Using an ohmmeter, measure the resistance between the terminals, ensuring the resistance values between each pair of Mass Air Flow Sensor terminals meet the specified requirements. If the measurements do not match the specified values, replace the Mass Air Flow Sensor. Loosen the clamps and remove the duct connecting the Mass Air Flow Sensor to the Throttle Body. Loosen the Mass Air Flow Sensor bracket-to-body bolt, remove the bracket-to-Mass Air Flow Sensor bolts, and rotate the bracket out of the way. Remove the air filter housing and air filter, followed by the filter housing-to-Mass Air Flow Sensor bolts, and then take out the Mass Air Flow Sensor. Installation follows the reverse order of removal.