After consulting several sources, someone finally called a local Buick dealer who informed me that a 1990 LeSabre does NOT have a map sensor, it was the Mass Air Flow sensor that needs replacing.
Your Mass Air Flow Sensor (MAF Sensor) is a piece of technology within your engine which tells your car's computer how much air is entering the engine. This is important as it allows your engine to regulate its performance and change the intake of air to keep your engine running in its best condition.Mass Air Flow sensor 1 Answer. May 29, 2018 just spent $427 to install a new Mass Air Flow sensor Does this have anything to do with both my 98 Buick and my current Buick have Service Engine light stays on all the time. Oh a... When your 4Runner mass flow sensor stops working, your engine control unit can no longer measure the air coming in through the intake. This makes its predictions about your optimum fuel ratio less precise, and that affects the power you receive when you lean on the gas, whether it's to accelerate, to tow, or to power through tough terrain. The BMW mass air flow sensor determines the mass of air entering the vehicle's fuel injection engine and passes that data to the Engine Control Unit, or ECU. When a vehicle's mass air flow sensor is faulty or defective, it can cause a variety of problems, and usually results in very poor engine performance. Choose for Me to Minimize Cost Choose for Me to Minimize Cost Related Parts. Related Parts. Emission Repair Manual. Fuel Injector. Mass Air Flow Sensor Connector ... Related Parts. TOYOTA > 2001 > COROLLA > 1.8L L4 > Exhaust & Emission > Mass Air Flow Sensor. Price: Core: Total: Alternate: No parts for vehicles in selected markets. Economy ...
A Faulty MAP Sensor will not properly regulate the flow of air mixing with the fuel in the combustion chamber. When the engine burns too much or too little oxygen as a result of bad sensor information, the spark plugs will suffer damage because they are likely to be covered in residue from poor combustion.
In the intake air stream, the MAF is located somewhere between the air filter box and the intake manifold, some models placing the sensor right on the air filter box, and others in the intake hose. Depending on if the MAF has an integrated IAT (intake air temperature) sensor, it may have between four and seven wires coming out of it.A mass airflow sensor helps provide a good fuel mix by monitoring the amount of air coming into the engine. On some vehicles, the mass airflow sensor replaces the MAP or manifold air pressure sensor. These types of sensors are critical for helping an engine to run well. The average cost for a Nissan Sentra mass airflow sensor replacement is between $402 and $509. Labor costs are estimated between $42 and $54 while parts are priced between $360 and $455. Estimate does not include taxes and fees. Note about price: The cost of this service or repair can vary by ...The mass air flow sensor could be the cause. Check for damaged or corroded connections. If nothing is found, remove the sensor and clean it with sensor cleaner. If the problem remains the sensor could be defective. Drive the vehicle with the sensor removed. If the problem is gone, the sensor needs to be replaced.Air is always passing through your engine, and the mass air flow sensor tells the car's computer how much air is moving through there. That information can be relayed as trouble codes or can activate an indicator light on the dashboard if a problem is detected. To get your mass air flow sensor replaced, you will pay about $300, on average.