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P0335 Chevrolet Uplander I

Testing & Diagnostics
  1. The ECM detects that the starter is commanded on and the engine has been cranking for more than 4 seconds without a CKP sensor pulse. OR
  2. The ECM detects that the engine has been running, but has not received a CKP sensor pulse for 2 of 10 engine revolutions.

More articles — Engine Controls - 3.9L - DTC P0011 to P0420