Note On Intermittents

1992 Saturn SL1 AutomaticSECTION Note On Intermittents
WARNING: This page is about a different car, the 1995 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.

Code P031 could be set during an engine backfire, which cause a rapid increase in MAP value. Check Code P031 snapshot.

Fig 1: Code P031 Schematic, Shorted MAP Sensor Circuit
G95B12741Courtesy of GENERAL MOTORS CORP
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.