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 MANUALSCHEVROLET1998ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSMANIFOLD PRESSURE/VACUUM SENSORTESTING AND INSPECTION
1998 Chevrolet Astro Van 2WD V6-4.3L VIN W
Manifold Pressure/Vacuum Sensor: Testing and Inspection
1998 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Testing and Inspection
When the VCM detects a malfunction in the MAP sensor circuit, the following DTCs will set:
^ DTC P0106 circuit performance malfunction.
^ DTC P0107 circuit low.
^ DTC P0108 circuit high.
^ DTC P1106 intermittent circuit high.
^ DTC P1107 intermittent circuit low.
For DTC testing procedures refer to Diagnostic Tables / Diagnostic Trouble Code Tables. Testing and Inspection
^ DTC P0106 circuit performance malfunction.
^ DTC P0107 circuit low.
^ DTC P0108 circuit high.
^ DTC P1106 intermittent circuit high.
^ DTC P1107 intermittent circuit low.
For DTC testing procedures refer to Diagnostic Tables / Diagnostic Trouble Code Tables. Testing and Inspection
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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.