Motor problems!! HELP PLEASE!!
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Cruiser
Joined: Dec 2012
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From: American by Birth, SOUTHERN by the Grace of GOD!
Can anybody tell me the proper way to check the coil on my ride? I have the manual and it tells about the ohm readings, but it doesn't have a pic or anything other than a schematic showing which lead goes to which pin! I have the dual spark coil with the four pin connector. I have checked the pins with the negative lead on the pin farthest to the right and the red lead on the pin farthest to the left with no results, but after putting the ground lead on the second from the left and checking the other 2 leads from center to right, I get ohm readings, but no reading on the lead farthest to the left! Does that make sense? I didn't think so,but may e someone can shed some light on this for me!
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From: Honah Lee
Coil should generate errors P1351.1352.1354.1355 . If you crank engine with 4 pin wire off it will generate these codes and is normal and they need to be cleared.
With the coil tower (spark plug wire hole) pointing up the 4 pin connection should also should be vertical. Starting at lower pin, they are A,B,C,D. A=power. B=feed back signal that I talked about in early post. C= rear coil. D= front coil.
Pull plug with 4 wire wire and key on, you should get good battery voltage to A for 2 seconds.
Wire off 0.3-0.5 ohm resistance across A and D and across A and C.
B is just a wire back to the ECM pin marked ion.
With the coil tower (spark plug wire hole) pointing up the 4 pin connection should also should be vertical. Starting at lower pin, they are A,B,C,D. A=power. B=feed back signal that I talked about in early post. C= rear coil. D= front coil.
Pull plug with 4 wire wire and key on, you should get good battery voltage to A for 2 seconds.
Wire off 0.3-0.5 ohm resistance across A and D and across A and C.
B is just a wire back to the ECM pin marked ion.
Last edited by Jackie Paper; Dec 26, 2012 at 08:16 AM.
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Cruiser
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From: American by Birth, SOUTHERN by the Grace of GOD!
No extra air that I know of, just an occasional spit back before the problem begins. Ripsaw, I was inquiring about the pins on the coil pack. My stealer declared my old coil bad and installed a new one! When I check it with the meter, both coils are the same readings. Now my question is with the pack facing me with the spark plug holes to my right and the 4 pin connector hole facing in the up position or toward me which should put the pins at the top of the coil, which pins do I need to put the red lead on and the black lead on. Leads meaning my ohm meter. I have tried to check it to the best of my knowledge and both coils check out exactly the same. Any help here to properly check the coil as to whether or not it is bad will be greatly appreciated!
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From: Honah Lee
What I am describing in 43 is straight out of my 04 diagnostic manual for a 04 Softail. Mine is mounted on bike with towers at 9 o'clock but then the 4 pin connector is facing down and up on back side. That is why they rotated it. It can really get confusing with me trying to reorientated the manual to suit what I think you are saying. If you rotate the towers vertical, is the 4 pin connector long axis vertical and now at 9 o'clock?
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Cruiser
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From: American by Birth, SOUTHERN by the Grace of GOD!
Well, just checked my coil using the advice I got from ripsaw and wouldn't you know it, my stealer declared my coil bad, installed a new one, charged me $$$$$ and my problem still persisted! After checking my new coil against my old coil ( which by the way, my stealer really didn't want me to have, but I insisted and got it anyway) the readings are exactly the same! So the diagnosis is that it was never my coil pack and my stealer is going to hear from me on that issue! Now I am still looking for any and all advice concerning my problem so I will have multiple points to diagnose till I find my problem! Thanks in advance!
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Thread Starter
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Cruiser
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From: American by Birth, SOUTHERN by the Grace of GOD!
With the coil pack off the bike, I have the coil positioned with the pin hole facing me and at the 9 o'clock or vertical position. The row of pins are facing me and I started by checking the first pin A with my red lead and using the black lead to check the third pin C and then to the fourth pin D and got a reading of 0.5 and 0.7 on each pin checked. Now with the red lead on the second pin B nothing reads on any pin! This should be correct in following your directions ripsaw! That helped me a lot in determining that neither coil is bad like the stealer said! The mechanic showed me that he used pin B as his red lead and pin C for his black lead with a reading of 0.L to indicate a bad coil! Boy will he be upset when I show up and refute his diagnosis and demand my money back on that coil!
Position of pins:
D- . Coil wire hole here facing forward and away from me >
C- .
B- .
A- . Coil wire hole here facing forward and away from me >
Position of pins:
D- . Coil wire hole here facing forward and away from me >
C- .
B- .
A- . Coil wire hole here facing forward and away from me >
Last edited by Cruzn34; Dec 26, 2012 at 09:56 AM.
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From: Honah Lee
There is not a lot of info on how to check B even in my diagnostic manual. I can only guess that it is a coil of wire around power lead and is giving the ECM a precise load to do the diagnostic codes it throws. Good luck on your money back. BE NICE. Tell them a person who engineers Nuclear Submarines checked it.
Last edited by Jackie Paper; Dec 26, 2012 at 10:13 AM.