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[5th Gen : 08+]: 14 grand caravan - PID for map reading .072 volts

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Old Aug 17, 2019 | 07:30 PM
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Post 14 grand caravan - PID for map reading .072 volts

Setting pcm dtc's: p06dd (eop control ckt stuck off), p0394 cam sensor 2 bank 2 intermittent),c121c 00 (torque request signal denied). cam sensor s2p2 and oil pressure sensors leaking - replaced both, no longer seeing p06dd. reviewed data with drivability symptoms present (loss of power and will not shift beyond 3rd gear and noticed MAP sensor voltage PID reading .073 volts steady). Check engine light on steady, traction control light comes on, and the electronic throttle control light comes on. Concern is intermittent. One one occasion, symptoms were particularly bad with PCM shutting down injectors 2, 4 and 6 - idling at 1100 rpm. With symptoms current disconnected oil pressure switch, both exhaust cam sensors and then app (gas pedal). When gas pedal disconnected the symptoms immediately stopped and engine went back to running normal. swapped out gas pedal - did not correct concern - still happening intermittently. Removed map sensor and reconnected connector. With hand held vacuum pump, applied vacuum to MAP sensor - voltage reading on scan tool fluctuates with vacuum until voltage goes below 2.1 volts - then value stays/sticks at 2.1 volts even when disconnecting the MAP sensor. Must cycle the ignition for value or voltage reading to start working again. This occurs when performing the bench test; when driving have only seen voltage stuck at 0.073 volts until ignition switch cycled. Verified power and grounds to PCM - okay. Has anyone came across this before?

 
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