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  #1  
Old 08-03-2010, 06:03 AM
Kurylo Kurylo is offline
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Default Help!!!!

I have a 97 2500 with 5.9. The problem started out with two surges the check engine light flashing very fast. Truck backfires (sounds like a machine gun). Pulled cades P300,P301,P302,P303,P304,P305,P306,P308. Already did tune up minus fuel filter. Cleared codes, truck still misses and smells rich but now no codes. Finally light came on again got code P1391 (cam and or crank sensor). Hayes book only goes to P804, talked to dealer and was told PCM. Replaced PCM with no change. Now I got code P320 (no distributor reference) but Hayes book shows for diesel engine. Any ideas what this could be?
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  #2  
Old 08-03-2010, 09:30 AM
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lucas318 lucas318 is offline
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first thing i would check in the condition of the engine harness, if you have a bad ground, or melted wires it will throw all kinds of codes, check all connectors make sure all terminals are seated properly into the houses(plugs).

since you did a tune up did you remove the Distributor cap or the whole distributor, the cam position sensor is located there, its a two way plug that should only go back in one way, but with force you can plug it wrong, or there might be a chance something fell into the plug and is making connection between the terminals.

throw that damn Hayes book away and get a Chilton and i take back that PCM and get your money back. i hope this help you narrow it done, if not fix the problem.
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Old 08-03-2010, 09:36 AM
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They won't refund the PCM, so you can forget that. The best way to pinpoint the problem is with a lab scope so you can monitor the waveforms for irregularities and pinpoint which sensor is causing the problem. I agree on getting a Chiltons manual but I wouldn't toss the Haynes; everyone needs a good doorstop.
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Old 08-03-2010, 07:26 PM
Kurylo Kurylo is offline
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I removed just the cap.
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Old 06-25-2016, 07:13 PM
rambo90167 rambo90167 is offline
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1996 dodge 1500
mine did that changed all the sensors didn't help found the alternator voltage too low changed it runs like new now replace the alternator
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Old Yesterday, 04:53 AM
FriarTuck FriarTuck is offline
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Lightbulb

P0320 Is indeed the code for the Camshaft Position Sensor, aka Ignition Pickup, and it is inside the distributor under the rotor. Knowing that you replaced the rotor and cap, I would open it back up and pull that rotor off and examine the sensor. It is the flat disk that sits under the rotor and just lifts up, no screws or clamps. It should only fit one way. There is a 3-wire connector attached to it externally. Be sure it makes a good connection.
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Old Yesterday, 08:46 AM
jsmith313 jsmith313 is offline
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Quote:
Originally Posted by FriarTuck View Post
P0320 Is indeed the code for the Camshaft Position Sensor, aka Ignition Pickup, and it is inside the distributor under the rotor. Knowing that you replaced the rotor and cap, I would open it back up and pull that rotor off and examine the sensor. It is the flat disk that sits under the rotor and just lifts up, no screws or clamps. It should only fit one way. There is a 3-wire connector attached to it externally. Be sure it makes a good connection.
6 year old thread...I'd wager OP has solved his issue by now(or no longer has the same truck lol)
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Old Today, 01:11 AM
FriarTuck FriarTuck is offline
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Red face

I just got suckered!
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  #9  
Old Today, 07:24 AM
jsmith313 jsmith313 is offline
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Quote:
Originally Posted by FriarTuck View Post
I just got suckered!
Don't feel too bad, he got me too in a different thread he brought back from the dead
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