GM 3.1L, 3.4L Index of Articles (old section) (at: ).GM 3.4L Index of Articles (Buick and Oldsmobile) (at: ).GM 3.1L Index of Articles (Buick and Oldsmobile) (at: ).GM 3.1L, 3.4L Index of Articles (old section).GM 3.4L Index of Articles (Chevrolet and Pontiac).GM 3.1L Index of Articles (Chevrolet and Pontiac).How To Troubleshoot Misfire Codes (GM 3.1L, 3.4L) (at: ).How To Do A Fuel Injector Resistance Test (GM 3.1L, 3.4L) (at: ).How To Test The Fuel Pump No Start Tests (GM 3.1L, 3.4L) (at: ).How To Troubleshoot A No Start (GM 3.1L, 3.4L) (at: ).How To Clean The GM Mass Air Flow (MAF) Sensor.How To Test The GM MAF Sensor 3.1L, 3.4L, 4.3L, 5.0L and 5.7L.If this tutorial was helpful, then the following tutorials will be too: If it doesn't, they find you the right part. Not sure if the above ignition module and/or CKP sensor fit your particular GM vehicle? Don't worry, once you get to the site they'll make sure it fits. The following links will help you comparison shop for the Delphi and Standard ignition control module and crankshaft position sensor: Where To Buy The Ignition Module Or CKP Sensor And Save Confirmed, in this test section, the CKP sensor IS NOT within the specified resistance.Confirmed the CKP sensor IS NOT creating a signal (TEST 3).Confirmed the ICM is receiving Ground (TEST 2).Confirmed the ICM is receiving power (TEST 1).If the multimeter still does not register the indicated Ohms reading, then you can conclude that the crankshaft position sensor is bad and needs replacement if you have: Confirmed, in this test section, the CKP sensor is within the specified resistance.ĬASE 2: Your multimeter DID NOT SHOW the indicated Ohms reading.Confirmed the CKP sensor is creating a signal (TEST 3).Confirmed it's receiving Ground (TEST 2).Confirmed it's receiving power (TEST 1).Confirmed that all six spark plug wires ARE NOT sparking.You can now conclude that the ignition control module is defective (and needs replacement) if you have: This is the correct test result and it confirms that the CKP sensor is OK. The multimeter's Ohms reading should read 500 to 900 Ohms.ĬASE 1: Your multimeter showed the indicated Ohms reading.
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