Code 64

1984 Plymouth Horizon Base, 1.6 ASECTION Code 64
WARNING: This page is about a different car, the 1994 Eagle Vision, 1994 Dodge Intrepid, 1994 Chrysler New Yorker, 1994 Chrysler LHS, and 1994 Chrysler Concorde. However, it is still accessible from the selected car via links, so may be relevant.

DRB displays FLEX FUEL SENSOR VOLTS TOO LOW. Condition is: methanol concentration sensor input less than minimum acceptable voltage.



DRB displays FLEX FUEL SENSOR VOLTS TOO HIGH. Condition is: methanol concentration sensor input more than maximum acceptable voltage.



DRB displays LOSS OF FLEX FUEL SENSOR CALIBRATION SIGNAL. Condition is: Powertrain Control Module (PCM) did not detect a flex fuel calibration signal from methanol concentration sensor at key-on.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.