ENGINE PERFORMANCE

2003 Kia Sorento

Tiny

alexpunisher

May, 19, 2009 AT 4:12 PM

Engine Performance problem
2003 Kia Sorento 6 cyl Two Wheel Drive Automatic 24,600 miles

trouble code P0431. Warm Up Catalyst Efficiency Below Threshold Bank 2. When my suv accelerates I have a whistling sound. I have poor acceleration at 2,500 RPM.

FOUND 16216 RELATED QUESTIONS

1 Answer

Tiny

Jacobandnickolas

October, 13, 2009 AT 10:36 AM

If you hear a whisteling sound and have low power with that code, chances are the converter is plugged on that side. You need to have it checked for backpressure.

Let me know what you find.

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