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P1391 Diagnostic Trouble Code Discussion for September 2012

CKP Or CMP Sensor Signal Intermittent

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Trouble Ticket Help Requests for DTC P1391
Help Request Posted
1999 Dodge Ram 2500 5.9L Cuts out, Misfire, MIL Lamp on VIN: 1B7KF23Z8X
P1391: temp loss of crank/cam sensor. ... brought to me from a body shop they put a new motor in it. the truck has a hard code p1391 and an intermitant p0340 it also misses on acceleration but not at idle, both crank and cam sensors are new from dealer fuel pressure is 50 psi i have resynced the d...
September 18, 2012
2000 Ford F-350 Super Duty Lariat 7.3L No Start VIN: 1FTWW33F6Y
P1391: Glow Plug Circuit Low Input On Bank 1 (Right Side). the rig came into the shop for no start. when it had started the customer concern was hard start white shoke for about 30 sec after start up. test the glow plugs and found two plugs on each side that tested bad. the main problem is the cooling system is full o...
September 19, 2012