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My car had the engine code P0315 and I put in the new crank

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shaft sensor but the engine...
My car had the engine code P0315 and I put in the new crank shaft sensor but the engine check light keeps going on, how do I fix that?
Submitted: 1 year ago.Category: Chevy
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Answered in 1 minute by:
12/11/2015
Chevy Mechanic: JOHN aka Eauto, The Car Guy replied 1 year ago
JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
Satisfied Customers: 16,564
Experience: ase tech
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did you perform a sensor relearn?

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Chevy Mechanic: JOHN aka Eauto, The Car Guy replied 1 year ago

a good professional scan tool is required to do this... You need to perform a Crankshaft Position System Variation Learn Important: The crankshaft position (CKP) system variation learn procedure is required when the following service procedures have been performed, regardless of whether DTC P0315 is set: •Engine replacement •Engine control module (ECM) replacement •ECM reprogramming •Crankshaft damper replacement •Crankshaft replacement •CKP sensor replacement •Any engine repairs which disturb the crankshaft to CKP sensor relationship Important: The scan tool monitors certain component signals to determine if all the conditions are met to continue with the CKP system variation learn procedure. The scan tool only displays the condition that inhibits the procedure. The scan tool monitors the following components: •CKP sensor activity—If there is a CKP sensor condition, refer to the applicable DTC that set. •Camshaft position (CMP) signal activity—If there is a CMP signal condition, refer to the applicable DTC that set. •Engine coolant temperature (ECT)—If the engine coolant temperature is not warm enough, idle the engine until the engine coolant temperature reaches the correct temperature. 1. Install a scan tool. 2. Monitor the ECM for DTCs with a scan tool. If other DTCs are set, except DTC P0315, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set. 3. With a scan tool, select the CKP system variation learn procedure and perform the following: 3.1. Observe the fuel cut-off for the applicable engine. 3.2. Block the drive wheels. 3.3. Set the parking brake. 3.4. Place the vehicle's transmission in Park or Neutral. 3.5. Turn the air conditioning (A/C) OFF. 3.6. Cycle the ignition from OFF to ON. 3.7. Apply and hold the brake pedal for the duration of the procedure. 3.8. Start and idle the engine. Accelerate to wide open throttle (WOT). The engine should not accelerate beyond the calibrated fuel cut-off RPM value noted in step 3.1. Release the throttle immediately if the value is exceeded. Important: While the learn procedure is in progress, release the throttle immediately when the engine starts to decelerate. The engine control is returned to the operator and the engine responds to throttle position after the learn procedure is complete. 3.10. Release the throttle when fuel cut-off occurs. 4. The scan tool displays Learn Status: Learned this Ignition. If the scan tool indicates that DTC P0315 ran and passed, the CKP variation learn procedure is complete. If the scan tool indicates DTC P0315 failed or did not run, refer to DTC P0315. If any other DTCs set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for the applicable DTC that set. 5. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully

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JOHN aka Eauto
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JOHN aka Eauto, The Car Guy
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