Fault Code P2257
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2257
Air Pump Secondary Air Injection System Control A Circuit Low
This code indicates a low voltage in the control circuit of the air pump in the Secondary Air Injection (SAI) system. This prevents the system, which helps reduce emissions during cold starts, from operating.
Part Details
Part Name
Secondary Air Injection Pump
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪800 - ₪2000
Engine Location
Engine bay, near the exhaust manifold
Symptoms
- Check Engine Light on
- Failed emissions test
- Noise from SAI system
- Rough engine operation on cold start
Possible Causes
- 1Faulty SAI pump
- 2Wiring short to ground in the control circuit
- 3Defective SAI relay
- 4Blown fuse
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