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Makes 🢒 Pontiac 🢒 2007 🢒 Wave 🢒 Bulletins 🢒 SES Light With A P0300 DTC And No Engine Performance Concerns - keywords can crank crankshaft cylinders DTC engine fel L91 no not P0300 P0301 P0302 P0303 P0304 repairs replacement

SES Light With A P0300 DTC And No Engine Performance Concerns - keywords can crank crankshaft cylinders DTC engine fel L91 no not P0300 P0301 P0302 P0303 P0304 repairs replacement

Subject:SES Light with a P0300 DTC and No Engine Performance Concerns

Models:2004-2007 Chevrolet Aveo
2005-2007 Pontiac Wave (Canada Only)
with 1.6L Engine (VIN 6 - RPO L91)


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A SES light may be experienced shortly after crankshaft or engine replacement due to DTCs P0300-P0304 and false engine misfires that count on paired cylinders, such as cylinders 1 and 4, or cylinders 2 and 3.

Recommendation/Instructions:

If this occurs shortly after crankshaft or engine replacement, perform the following suggestions and evaluate the concern even if a CKP variation learn was already performed during the previous repairs:

  1. Disconnect both battery cables.
  2. Hold both battery cables together for at least 2 minutes.
  3. Reconnect both battery cables.
  4. Perform a CKP variation learn with the Tech 2.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.