Cold Start Engine Exhaust Temperature Too Low

Check these first

• A failed exhaust temperature sensor
• A rich condition from leaking injectors on cold start
• A restricted exhaust raising the reading
• A failing ignition system not lighting the charge

What to do next

1. Read the exhaust temperature sensor on a cold start
2. Check the fuel trims for a cold start rich condition
3. Inspect the ignition system for weak spark
4. Check the exhaust for a restriction
5. Clear the code and retest

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