Question about Chevrolet Cavalier
It might be the intake air temperature sensor. This sensor usually mounts into either the air cleaner or the plastic or rubber pipe going from the air cleaner to the throttle body.
Posted on Jun 14, 2009
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Posted on Jan 02, 2017
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MAP Sensor TESTING
See Figures 1, 2 and 3
Fig. Fig. 1: Typical Manifold Absolute Pressure (MAP) sensor wiring diagram (wire color, terminal identification/location may vary on certain models)
Fig. Fig. 2: Using jumper wires and a high impedance voltmeter test between MAP sensor terminals A and C with the key ON and engine off. The voltage should be approximately 5 volts
Fig. Fig. 3: Next test between MAP sensor terminals A and B with the key ON and engine off. The voltage should be approximately 0.5 volts
EGR test: requires a GM scan tool:
Linear EGR Valve
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