What would cause MAP Sensor to read voltage too high Code P0108 & Engine is cold too long Code P1281

Tiny
ROBB BANDELL
  • MEMBER
  • 1998 CHRYSLER CIRRUS
  • 200,000 MILES
I replaced the IAC, new Plugs, new wires, new Cap & Rotor, & new MAP Sensor
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Saturday, November 5th, 2011 AT 4:49 PM

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Tiny
CARADIODOC
  • EXPERT
Measure the voltages on the three MAP sensor wires while the engine is running. You should find a 5.0 volt feed wire, 0.2 volts on the ground wire, and roughly 1.0 to 2.0 volts on the signal wire. If the signal wire is high, look for a vacuum leak that can affect the sensor's reading.

Code 1281 can be ignored. That means the engine hasn't reached a certain temperature within six minutes of starting. Every Chrysler product has that code in winter. It will not turn on the Check Engine light.
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Saturday, November 5th, 2011 AT 6:01 PM

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