Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPLYMOUTH1991LASER L4-1997CC 2.0L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSAIR FLOW METER/SENSORDESCRIPTION AND OPERATION
1991 Plymouth Laser L4-1997cc 2.0L DOHC
Air Flow Meter/Sensor: Description and Operation
1991 Plymouth Laser L4-1997cc 2.0L DOHCSECTION Description and Operation
The Air Flow Sensor is located within the air induction filter housing. The Karman Vortex type sensor measures the flow rate of the incoming air. The Air Flow Sensor transmits a frequency signal which becomes disrupted in proportion to the amount of air being drawn in through the Air Flow Sensor. The Control Unit monitors this signal, along with other signals, to calculate injector pulse width for the air/fuel ratio adjustments.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.