P2440moderate severityPowertrain
Secondary Air Injection System Switching Valve Stuck Open Bank 1
on 2015 Kia Forte 1.8L I4 · FWD
What this code means
The secondary air injection switching valve on bank 1 is stuck in the open position.
Symptoms
- Check engine light
- Failed emissions test
- Noise from air injection system
Common causes
- Carbon deposits in valve
- Failed diaphragm
- Broken valve spring
- Vacuum supply issue
Diagnostic steps
- Inspect valve operation
- Check vacuum supply
- Listen for air injection noise at idle
Repair notes
Replace secondary air switching valve.
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P0001
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P0002
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P0003
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P0004
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P0010
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P0011
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P0012
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P0013
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P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1