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Crown Vic. Sensor Ref. Voltage 'A' Low : p0642

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sadkowmx90 • Chicopee, MA, USA • Registered on 12/5/2016 • 1 post

Posted:12/5/2016 10:12 I have a 2008 CVPI and I am getting the following 4 codes: P0107 (MAP Sensor Signal Low) P0192 (Fuel Rail Pressure Sensor Circuit Low) P0452 (EVAP Pressure Sensor Circuit Low) P0642 (Sensor Reference Voltage 'A' Circuit Low) I am assuming that there is either a short somewhere or there is a problem with the ECM. How do I determine if the ECM is either good or bad ? Would anyone have a pin-out of the ECM and the voltage ranges of each pin ? If my assumption about the issue is wrong, please chime in. Thanks

Gz6jjd • Olathe, KS, USA • Registered on 1/8/2019 • 1 post

Posted:1/8/2019 07:28 I know this post is old but I’m having the exact same problem with my Vic. Did anyone ever come up with a solution?

Forums > Car and Truck Make and Model Specific > Crown Victoria, Marauder, Marquis

Crown Vic. Sensor Ref. Voltage 'A' Low : p0642

Thread Statistics:     Users to Post: 2   |   Total Posts: 2   |   Total Views: 934

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