Ignition problem after installing pc3
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3rd Gear
Joined: Feb 2017
Posts: 7
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From: Lebanon
Ignition problem after installing pc3
I installed a pc3 to my road king 2007 , it had a rough start and it is working only on the rear cylinder , i checked the ignition , the ignition of the first cylinder is very low , any help please !!!??
Stellar HDF Member
Joined: Sep 2009
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Is this a used PC3USB?
Reliability of those units are questionable. Some seem to last forever and some die over time.
Remove the unit. Does the bike run normal? If so you are possibly the owner of someone else's failure.
Bob
Reliability of those units are questionable. Some seem to last forever and some die over time.
Remove the unit. Does the bike run normal? If so you are possibly the owner of someone else's failure.
Bob
Stellar HDF Member
Joined: Jan 2009
Posts: 2,578
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From: On a Lake, not far from the Gulf
If it works with the PCIII removed, then the PCIII is bad. You say it is a used unit? How do you know it is good? You can send it back to Dynojet, and they will test it, though I don't know what they would charge you to do that.
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3rd Gear
Joined: Feb 2017
Posts: 7
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From: Lebanon
I removed the pcusb3 and its still running on the back cylinder , if the pcusb3 is installed and removed nothing change just i get rich fuel ,
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Stellar HDF Member
Joined: Jan 2009
Posts: 2,578
Likes: 463
From: On a Lake, not far from the Gulf
Don't reinstall the PCIII until you figure out your ignition issues. Make sure the battery is fully charged. Check for trouble codes.
Some of the earlier twinkies had a problem with the front injector harness being too short, but I thought they had that figured out by 2007. You can do a wiggle test on the front injector wire to see if it is shorted though. You should check for spark in the front cyl.
Some of the earlier twinkies had a problem with the front injector harness being too short, but I thought they had that figured out by 2007. You can do a wiggle test on the front injector wire to see if it is shorted though. You should check for spark in the front cyl.
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