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P0501 Diagnostic Trouble Code Discussion for January 2011

Vehicle Speed Sensor 1 Performance

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Trouble Ticket Help Requests for DTC P0501
Help Request Posted
1995 Buick Park Avenue 3.8L No Start VIN: 1G4CW52K9S
P0501: Speed sensor circuit. Thanks to everyone responding to this post. I unplugged cam sensor, no start. Fuel pressure will get up to 40 psi but will drop off when stop cranking. Even though I replaced the pcm with same prom codes will not erase. ECT and MAT with in 5 deg. of each other...
January 17, 2011
2007 Chrysler Aspen Limited 5.7L MIL Lamp on VIN: 1A8HW58247
P0501: Vehicle Speed Sensor 1 Performance. vehicle came in with no speedo and all warming lights on. had no vss signal. replaced sensor, now will work intermitently. would this require a reflash? checked wires and reohmed vss. are there problems with pcm on this vehicle? thanks
January 19, 2011