How to service the MAP Sensor on Chevrolet Metro?

Disconnection work on the Manifold Absolute Pressure (MAP) Sensor requires both electrical connector removal and release of the vacuum hose with clamp from the MAP sensor. First detach the filter from the vacuum hoses before loosening the one bolt to remove the MAP sensor and bracket from the bulkhead. The MAP sensor installation requires securing the MAP sensor to its bracket followed by bolt tightening to 10 N.m (89 lb in) on the bulkhead bracket. Reinstall the MAP filter on vacuum hoses before connecting each hose to the MAP sensor using the clamp then finish by reconnecting the electrical connector to the sensor.

OEM Chevrolet Metro MAP Sensor

Manifold Air Pressure Sensor

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Chevrolet Metro M.A.P. Sensor Part Number: 30013115
Product Specifications
- Other Name: Sensor, Computer Control Sensors; MAP Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2000 Chevrolet Metro | Base | 3 Cyl 1.0 L GAS
View related parts
Chevrolet Metro M.A.P. Sensor Part Number: 30019577
Product Specifications
- Other Name: Sensor, Computer Control Sensors; MAP Sensor
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2001 Chevrolet Metro | Base, LSi | 4 Cyl 1.3 L GAS

Chevrolet Metro MAP Sensor

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The MAP Sensor in Chevrolet Metro cars is one of the significant equipments that would help the car measure the positive air pressure within the intake manifold. This small device sends information to the engine control unit (ECU) and the latter modifies the fuel injectors to fine-tune the quantities of air in the cylinder for the correct Air Fuel Ratio to feed the combustion chamber. Current Chevrolet Metro car models employ the MAP Sensor mostly in naturally aspirated engines, while forced induction engines may incorporate both the MAP and the mass airflow (MAF) sensors. Another feature of the MAP Sensor is that it measures absolute pressure and unlike the boost sensors that measures pressure over a base pressure. This functionality is very crucial to meter the fuel accurately in Chevrolet Metro vehicles, to time the ignition correctly as well as to maximize the efficiency of an engine.

Chevrolet Metro MAP Sensor Parts Questions & Experts Answers

M.A.P. Sensor
30013115
Q: How to service the MAP Sensor on Chevrolet Metro?
A:
Disconnection work on the Manifold Absolute Pressure (MAP) Sensor requires both electrical connector removal and release of the vacuum hose with clamp from the MAP sensor. First detach the filter from the vacuum hoses before loosening the one bolt to remove the MAP sensor and bracket from the bulkhead. The MAP sensor installation requires securing the MAP sensor to its bracket followed by bolt tightening to 10 N.m (89 lb in) on the bulkhead bracket. Reinstall the MAP filter on vacuum hoses before connecting each hose to the MAP sensor using the clamp then finish by reconnecting the electrical connector to the sensor.