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P1259 Diagnostic Trouble Code Discussion for May 2009

VTEC System Malfunction (Bank 1)

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Trouble Ticket Help Requests for DTC P1259
Help Request Posted
2003 Honda Civic Si 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: SHHEP33513
P1259: VTEC System Malfunction. This vehicle came in barely running.Misfiring on all cylinders.Way too much fuel,plugs were black.Oxygen sesnsor comes and goes.When it is reading its 1.2 volts and long term and short fuel trims maxed fuel reduction.I have good spark to all cylinders.Replaced...
May 02, 2009