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56chevy
New User
Mar 16, 2008, 12:39 PM
Post #1 of 11
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I have 98 dodge dakota sport with a 318 5.2 liter automatic 2 wheel drive that is getting no spark and no fuel. engine cranks but doesnt start. have replaced the crank position sensor, switched the fuel pump relay and auto shut down relay. i appreciate your help
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Double J
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/ Moderator
Mar 16, 2008, 12:52 PM
Post #2 of 11
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Re: 98 dodge dakota
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Hi
Possibly the cam Sensor (Hall effect switch) inside the distributor.
Jim
Edit:
P.S..Just thinking too..check to make sure the distributor shaft is turning....make sure it didn't jump time.
(This post was edited by JIM N on Mar 16, 2008, 1:09 PM)
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way2old
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/ Moderator
Mar 16, 2008, 1:15 PM
Post #3 of 11
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Re: 98 dodge dakota
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Also check for blown fisible links.
Being way2old is why I need help from younger minds
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56chevy
New User
Mar 16, 2008, 1:24 PM
Post #4 of 11
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Re: 98 dodge dakota
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what is a hall effect switch
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Double J
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Mar 16, 2008, 1:38 PM
Post #5 of 11
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Re: 98 dodge dakota
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Read this...
I guess its the "points" on a 56 chevy...LOL
The Camshaft Position (CMP) sensor provides camshaft position information which is used by the ECM for fuel and ignition system synchronization. The sensor is a Hall effect digital sensor. It has a metal pulse ring and a pickup assembly located inside the distributor. The CMP signal is a digital on/off type signal. When the pulse ring travels through the pickup, a permanent magnet inside the pickup creates magnetism, which induces voltage. The pulse ring has slots, or one large slot; as the slot(s) pass, the pickup loses its magnetism and voltage is lost, thereby generating the on/off signal. The CMP and Crankshaft Position (CKP) sensor let the ECM know the position of the camshaft and crankshaft, so the engine can be properly timed.
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Fig. 1: Distributor with an integral Hall effect switch (CMP sensor)
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Double J
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Mar 16, 2008, 1:53 PM
Post #6 of 11
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Re: 98 dodge dakota
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Looks like this removed...notice the pulse ring inside the distributor..that passes thru this...
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56chevy
New User
Mar 16, 2008, 1:58 PM
Post #7 of 11
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Re: 98 dodge dakota
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is this what would give the injectors there pulse
(This post was edited by 56chevy on Mar 16, 2008, 2:01 PM)
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Double J
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Mar 16, 2008, 2:08 PM
Post #8 of 11
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Re: 98 dodge dakota
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This is what creates the spark....signals the coil...just like how old ignition points used to do...
If the PCM doesn't receive this signal,or crank shaft position sensor signal, the automatic shutdown relay (ASD) will shut off the fuel pump,injectors,02's,etc.
The PCM controls the injectors based on inputs from this and crank sensor and various sensors.
Hope that clears it up.
Jim
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56chevy
New User
Mar 16, 2008, 2:12 PM
Post #9 of 11
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Re: 98 dodge dakota
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yes thank you for all the info i have a few things to look at 
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dave284
Enthusiast
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Jun 14, 2008, 1:35 PM
Post #11 of 11
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Re: 98 dodge dakota
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Have you had the pcm replaced?, what kinda codes are coming up?
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