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 MANUALSGEO1993PRIZM L4-1600CC 1.6L DOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSMANIFOLD PRESSURE/VACUUM SENSORSERVICE AND REPAIR
1993 Geo Prizm L4-1600cc 1.6L DOHC
Manifold Pressure/Vacuum Sensor: Service and Repair
1993 Geo Prizm L4-1600cc 1.6L DOHCSECTION Service and Repair
MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REPLACEMENT
Remove or Disconnect
1. Negative (-) battery cable.
2. One vacuum hose from MAP sensor.
3. MAP sensor electrical connector.
4. One bolt and MAP sensor with bracket from bulkhead.
Install or Connect
1. MAP sensor with bracket to bulkhead; secure with one bolt.
Tighten
^ MAP sensor bolt to 15 Nm (11 lb.ft.).
2. MAP sensor electrical connector.
3. One vacuum hose to MAP sensor.
4. Negative (-) battery cable.
Tighten
^ Negative (-) battery cable-to-negative battery terminal retainer to 15 Nm (11 lb.ft).
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.