DTC P050B-93: Cold Start Ignition Timing Performance - No operation: Action
- Check harness connectors for corrosion in terminals or splices
- Refer to applicable SYSTEM WIRING DIAGRAM(S) and check the ignition coils circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Check ignition coils for mechanical failure
- Check and install a new engine control module as required