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 MANUALSMAZDA1988B2200 SE-5, 2D PICKUP, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEM2.2L FEEDBACK CARBURETOR SYSTEMCOMPONENT TESTINGSYSTEM COMPONENTSVACUUM SENSOR
1988 Mazda B2200 SE-5, 2D Pickup, Automatic
Vacuum Sensor
1988 Mazda B2200 SE-5, 2D Pickup, AutomaticSECTION Vacuum Sensor
- Remove vacuum hose and attach a vacuum pump to sensor. Turn ignition on. Check voltage between each terminal and ground while applying and releasing 30 in. Hg to sensor. See Figure
.VACUUM SENSOR TERMINAL VOLTAGE
Terminal Voltage "A" Less Than 1.5 "B" 4.5-5.5 "C" 12 "D" 1.4-4.9 - If voltages at terminal "A", "B", or "C" is not within specifications, check wiring harness to sensor. If voltages at terminal "A", "B", or "C" is within specifications, but terminal "D" is not within specifications, replace vacuum sensor.
RENDER: 1.0x
NO RELATED
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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.