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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 244 (Engine Controls - Self-Diagnostics - 4.3L) >> Diagnostic Tests >> DTC P0016: Crankshaft Position-To-Camshaft Position Correlation (Bank 1, Sensor 1) >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 GMC Sonoma, 2003 GMC Safari, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Did you perform the Diagnostic System Check - Engine Controls? If yes, go to next step. If no, see DIAGNOSTIC SYSTEM CHECK - ENGINE CONTROLS  under SELF-DIAGNOSTIC SYSTEM.
  2. Install scan tool. Start engine. Use the scan tool in order to monitor the engine speed. Does the engine speed fluctuate, up to twice the desired RPM? If yes, go to next step. If no, go to step  4.
  3. Replace the crankshaft position sensor. After replacing sensor, go to step  10.
  4. Perform the Camshaft Retard Offset test procedure as follows: Install scan tool. Start engine. The camshaft retard reading will not be accurate at less than 1000 RPM. Raise engine speed to 1000 RPM. Monitor the camshaft retard with the scan tool. Is the camshaft retard reading within -20 to 20 degrees? If yes, go to next step. If no, go to step  6.
  5. Note camshaft retard reading from the previous step. Raise engine speed to 2000 RPM. Does the camshaft retard reading change more than 2 degrees? If yes, go to next step. If no, go to DIAGNOSTIC AIDS .
  6. Ensure engine at operating temperature. Turn engine off. Remove distributor cap. Grasp distributor rotor and gently attempt to rotate the rotor. Does the rotor turn on the distributor shaft? If yes, go to step  8. If no, go to next step.
  7. Check for proper installation of the distributor. Repair as necessary. Did you find and correct the condition? If yes, go to step  9. If no, go to next step.
  8. Replace distributor. After replacing distributor, go to next step.
  9. Clear the DTCs with a scan tool. Turn ignition off for 30 seconds. Start engine. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records. Did the DTC fail this ignition? If yes, go to step  2. If no, go to next step.
  10. Observe the stored information, Capture Info with a scan tool. Does the scan tool display any DTCs that you have not diagnosed? If yes, see DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, system is okay.
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