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Posts Tagged: P1259 VTEC malfunction

P1259 VTEC Malfunction

Diagnose and fix P1259 VTEC Malfunction If you have trouble code P1259 VTEC malfunction, here’s a list of things to check to solve the problem. Understanding the P1259 VTEC malfunction code Honda uses a variable valve timing mechanism to advance or retard valve timing. The VTEC mechanism is driven by the engine’s oil pressure. The computer determines whether to advance or retard timing and then pulses a solenoid to regulate oil pressure to the VTEC mechanism. Honda installs a VTEC pressure switch to detect oil gallery pressure and based on … Read More

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