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High Fuel Consumption

Halious-Other problems are, severe drop in power, inability to accelerate, stalling out, & your wallet gets a lot lighter(Cheapest one we ever replaced at my shop was $298 at cost.) Despite the important sounding name it's easy to replace. It lies somewhere between the air filter & the throttle body buy a new one and compare it to parts you see along the air intake system(A lot of German cars like VW & Audi put them in the air filter box bolted to the top section that you lift off to see the air filter. Chevy likes to put them right in front of the throttle body. Usually prettty easy to find & work on.). A few bolts, & a couple wires. At least save yourself some money on labor costs.

Note: Mass air flow sensors can be cleaned to restore performance in most cases without having to replace them. The hot wire variety can be cleaned with isopropyl (rubbing) alcohol, electrical contact cleaner, or aerosol cleaners specifically designed for Mass Airflow Sensors . NEVER use carburetor or throttle body cleaner as these are too harsh for the delicate platinum wires. There are many cleaning methods that can be found by an internet search. In rare cases, your car may have a Karman-Vortex type air sensor and these cannot be easily cleaned and are more often found on cars that are either turbocharged or supercharged. When your mass air flow sensor goes bad, it cannot react properly to changes in the air entering your engine, so it will provide either too little or too much gas for your airflow, causing issues such as hard starts, rough idle, sluggish throttle response, and pinging.

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Q: What happens when a mass air flow sensor goes bad?
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