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 MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 37 (ENGINE CONTROLS - SYSTEM/COMPONENT TESTS)ENGINE SENSORS & SWITCHESAIRFLOW SENSOR
1984 Plymouth Horizon Base, 1.6 A
Airflow Sensor
1984 Plymouth Horizon Base, 1.6 ASECTION Airflow Sensor
WARNING: This page is about a different car, the 1994 Plymouth Laser and 1994 Eagle Talon. However, it is still accessible from the selected car via links, so may be relevant.
- Airflow sensor is located inside air cleaner assembly. Disconnect airflow sensor electrical connector. Using an ohmmeter, measure resistance between airflow sensor connector terminals. On non-turbo models, measure resistance between connector terminals No. 4 and 6. On turbo models, measure resistance between connector terminals No. 6 and 8. See Fig 1 .
- Using a hair dryer, heat airflow sensor. On all models, resistance should be approximately 6000 ohms at 32°F (0°C), 2700 ohms at 68°F (20°C) and 400 ohms at 176°F (80°C). Note that as temperature increases, resistance decreases.
- If airflow sensor resistance is not as specified or if resistance remains unchanged, replace airflow sensor.
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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.