dyna wont start, gas on the plugs
#31
09-02-2010, 10:17 PM
Found this on a thread on this forum. It was later confirmed as correct, but I'm not sure if applies to your bike specifically.
FXDWG2002
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Location: Wylie, TX (Near Dallas)
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For those of you that don't know, 0v-5v is TTL logic used in 100% of digital circuitry. This is digital because the red wire and black wire are independent of any power source or ground on the bike.
Ok, I do not have an o'scope to test this with. But it is my understanding that the magnet in the CKP sensor will produce a 5v pulse every time the missing teeth come around. This can be seen on a multimeter as a change from zero (actually 2.81v) to 5v. Do I understand correctly?
It takes 2.81v just for the ECM to register the presence of the CKP sensor.
I kept the plug hooked up between the CKP and the ECM. I pushed straight pins into the connector so I could see the operation (or lack there of) in circuit.
Last edited by FXDWG2002; 08-18-2009 at 05:19 PM.
FXDWG2002
Hang Around
Join Date: Aug 2009
Location: Wylie, TX (Near Dallas)
Posts: 2
For those of you that don't know, 0v-5v is TTL logic used in 100% of digital circuitry. This is digital because the red wire and black wire are independent of any power source or ground on the bike.
Ok, I do not have an o'scope to test this with. But it is my understanding that the magnet in the CKP sensor will produce a 5v pulse every time the missing teeth come around. This can be seen on a multimeter as a change from zero (actually 2.81v) to 5v. Do I understand correctly?
It takes 2.81v just for the ECM to register the presence of the CKP sensor.
I kept the plug hooked up between the CKP and the ECM. I pushed straight pins into the connector so I could see the operation (or lack there of) in circuit.
Last edited by FXDWG2002; 08-18-2009 at 05:19 PM.
#32
09-05-2010, 02:20 AM
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hey, thanks I'm gonna start a new thread about how to check the CPS or mayb i should just buy 1, i can always sell it on ebay later if it turns out to b something else
#33
09-05-2010, 08:52 PM
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The sensor is located on the front of the engine, left side, next to the top of the oil filter top. It's something that you don't want to damage when changing the filter. Let us know what you find.
#34
09-12-2010, 04:49 AM
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Update
Back in action. Replaced my cpk and my dyna started right up. Of course I wasn't able to run the wire like the old one; I swear you'd have to take half the bike apart to run it right. Thanks to the HD riders who gave me helpful info and NOT smart *** comments like the ones from "other sheep"(turns out my bike didnt need a mechanic or i was the mechanic, other douche). Total cost for this DIY fix was about $140 with all the extra parts I bought that didn't fix the prob. If I woulda took it to the dealer I guarantee it would've cost more than $140 plus the towing charge. Anyone wanna buy a purple 2001 dyna super glide sport with 26k mi? I'm in the SF bay area
#36
09-12-2010, 07:24 PM
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zenwarrior
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