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hello, I have a 2005 Honda Civic 1.6L with fault code P2646 I've checked the oil pressure switch and wiring o/k it is hitting the limiter at 4000rpm when driving and won't kick in the vtec is there a senor in the gearbox which could cause this ??

Vehicle: 2005 Honda Civic 1.6L

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P2646 HONDA - Rocker Arm Oil Pressure Switch Circuit Low Voltage

Read more: https://www.autocodes.com/p2646_honda.html

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