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Do you need to have the mass air flow sensor on 2003 Chevy s-10?

No, a 2003 Chevy S-10 *can* run without a functioning mass airflow sensor (MAF), but it will run poorly. The engine computer will default to a "limp mode" using a pre-programmed fuel delivery strategy. This will likely result in:

* Poor performance: Significant loss of power and acceleration.

* Poor fuel economy: Higher than normal fuel consumption.

* Rough idling: The engine may idle roughly or stall.

* Check engine light: The check engine light will almost certainly be illuminated, indicating a problem with the MAF sensor or related systems.

While the truck might start and even drive without the MAF sensor, it's crucial for proper engine operation. Repairing or replacing a faulty MAF sensor is strongly recommended for optimal performance and fuel efficiency. Driving with a malfunctioning MAF sensor for extended periods can also potentially damage other engine components.

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