![]() Manifold Absolute Pressure (MAP) TMAP sensor location-2.0L engine Temperature Manifold Absolute Pressure (Tmap) Sensorįig. Connect the SCIP sensor harness connector.Install the SCIP sensor (1) into the intake manifold.NOTE : Use the new SCIP sensor seal provided with the new SCIP sensor. WARNING : If the SCIP sensor seal is damaged, the SCIP sensor must be replaced. Remove the SCIP sensor (1) from the supercharger.Disconnect the Supercharger Inlet Pressure (SCIP) sensor harness connector.Manifold Absolute Pressure (MAP) SCIP sensor location-2.0L engine Supercharger Inlet Pressure (Scip) Sensorįig. Please let me know if you have any questions, and thanks for using FixYa. If your sensor passes the test, please get back to me with your symptoms and/or trouble code for alternate repair advice. I recommend you run the test also pasted below before buying a new sensor. I have pasted instructions from for all 3 below. Hi, there are 3 different engines for the 2005 Cobalt. If the voltage is not within the specified range or is erratic, replace the MAP sensor.Should vary between 0-5.2 volts, without any spikes or dropouts. Vacuum to the sensor while observing the voltage on the DMM. Install the J 35555 to the MAP sensor vacuum port.Connect a DMM between the jumper wire from terminal 3 of the MAP sensor and ground.Install a jumper wire at terminal 3-2.0L & 2.2L of the MAP sensor.Install a jumper wire between the low reference circuit terminal 2-2.0L & 2.2L of the MAP sensor and ground.Install a 3A fused jumper wire between the 5 volt referenceĬircuit terminal 1-2.0L & 2.2L and the corresponding terminal of the.Turn ON the ignition, with the engine OFF, and remove the MAP sensor.The integrity of the MAP sensor circuits, before proceeding with the You must perform the circuit/system testing, in order to verify If all circuits test normal, test or replace the MAP sensor.If less than the specified range, test the signal circuit terminalģ-2.0L & 2.2L for a short to ground or an open/high resistance.Verify the scan tool MAP sensor parameter is greater than Install a 3A fused jumper wire between the signal circuit terminalģ-2.0L & 2.2L and the 5 volt reference circuit terminal 1-2.0L.If greater than the specified range, test the signal circuit terminal 3-2.0L & 2.2L for a short to voltage.Verify the scan tool MAP sensor parameter is less than 1 kPa.If greater than the specified range, test the 5 volt referenceĬircuit for a short to voltage.If less than the specified range, test the 5 volt referenceĬircuit for a short to ground or an open/high resistance.Reference circuit terminal 1 and ground-2.0L & 2.2L (C and With the ignition ON, test for 4.8-5.2 volts between the 5 volt. ![]() If the circuit tests normal, replace the ECM.If greater than the specified range, test the low reference circuit for an open/high resistance.Test for less than 5 ohms of resistance between the low referenceĬircuit terminal 2 and ground-2.0L & 2.2L (A and ground-2.4L).With the ignition OFF, disconnect the MAP harness connector at the MAP sensor.Manifold Absolute Pressure (MAP) connector end view-2.4L engineĪll electrical components and accessories must be turned OFF, and allowed to power down. Manifold Absolute Pressure (MAP) connector end view-2.0L & 2.2L enginesįig. Use the scan tool and compare the MAP Sensor parameter to a known good vehicle, under various operating conditions.įig.Ignition ON, observe the scan tool BARO Sensor parameter. Determine the current vehicle testing altitude.Verify that restrictions do not exist in the MAP sensor port or vacuum source.Verify the integrity of the entire air induction system by inspecting for the following conditions:Īny damage to, or hairline fractures of, the MAP sensor housing Loose or improper installation Any vacuum leak.In that case, go on to the MAP sensor test. If you don't see anything on the fuel rail with a vacuum hose attached, you may not have a separate regulator. If any gas comes out, replace the regulator. Start the engine and check to see if gas spits out of the vacuum port on the regulator. Pull the vacuum hose off the regulator and plug the hose with a golf tee. The regulator is usually on the fuel rail on top of the engine, depending on which engine you have. If that was good, I would test the MAP sensor. I would check the fuel pressure regulator for a torn diaphragm.
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