Re: 1st gen 5.2 magnum ignition
[Re: n_bogie1984]
#2423811
12/26/17 01:37 AM
12/26/17 01:37 AM
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Joined: Apr 2004
Posts: 684 Maine
jerseybud
mopar
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mopar
Joined: Apr 2004
Posts: 684
Maine
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car-part is showing a ECM in connecticut. And while I would barely trust them since its cardone, rockauto does too.
Check for codes before spending bug bucks- Should get a 12 and a 55 minimum. If you get no codes, its bad wiring or bad ECM
You would be opening up a HUGE can of worms converting to OBD-2.But I could see it being done with FSMs for both 96 and 93. Seems easier to just find the problem first and spend 10 minutes if its the ECM. EDIT: 94 and 95 ECM will run it, but it drive like you're running 5 psi on all the tires. I'm still working on the reason why
Last edited by jerseybud; 12/26/17 01:39 AM.
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Re: 1st gen 5.2 magnum ignition
[Re: jerseybud]
#2433336
01/12/18 01:05 PM
01/12/18 01:05 PM
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Joined: Feb 2003
Posts: 21,318 Manitoba, Canada
DaytonaTurbo
Too Many Posts
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Too Many Posts
Joined: Feb 2003
Posts: 21,318
Manitoba, Canada
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Computer should still show 12 and 55 as codes. If not, theres a problem. This is where I would be looking. With the key first in the run position, does the check engine light come on? It's supposed to as a visual check that the light is working. If you can't get the light on or codes to flash you have a problem. You should always be able to get the code 55 which means end of sequence. If not I would be checking at the computer to see if you're getting ground, constant power and switched power.
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Re: 1st gen 5.2 magnum ignition
[Re: n_bogie1984]
#2433493
01/12/18 04:55 PM
01/12/18 04:55 PM
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Joined: May 2005
Posts: 125 Iowa
dsp
member
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member
Joined: May 2005
Posts: 125
Iowa
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You're only getting 0.6 volts to the coil? I assume that reading was taken with the coil connected? The coil itself may be shorted. Those Magnum coils are notorious for failing here in the rust belt. Salt causes the coil laminations to rust, and as they rust, they expand. Eventually, the laminations expand to the point they crack the epoxy encapsulation of the coil. At that point, water gets into the coil and shorts it out. Carefully inspect the coil for cracks.
Last edited by dsp; 01/12/18 04:59 PM.
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