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  • List item any other ideas what could be causing this
Vehicle: 2002 Hyundai elantra. 2.0 liter

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P0139 slow response bank 1 sensor 2, A cross connection of the front and rear bank. A exhaust manifold leak, a plugged PCV or even a collapse PCV hose, Fuel pressure being low  the specification are 338 kPA - 348 kPA

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