Author Topic: Sportster 883 has Misfire on Front Cylinder  (Read 133 times)

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Offline darjoemy

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Sportster 883 has Misfire on Front Cylinder
« on: July 26, 2017, 06:34:53 PM »
Hey all,
I have a 2010 sportster 883XL that loses spark on the front cylinder for a few seconds then picks up again. This only happens at certain rpm's(no tachometer on bike) and higher, usually at speeds of 60mph or greater. The engine light comes on as well, then goes out again.
The code P1352 Front Ignition Coil Driver High/Shorted comes up. I have replaced the plugs, wires and ignition coil. I am looking at the ecm next. Any suggestions or insight would be greatly appreciated.
Thanks

Offline PC_Hater

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Re: Sportster 883 has Misfire on Front Cylinder
« Reply #1 on: July 27, 2017, 11:37:14 AM »
It might be the ECM, but given the age of the bike I would have a very close look at the wiring harness and earthing connections.
It could be a 'stretched' wire that usually makes contact until it doesn't, those really can be hard to find.
Careful inspection will be cheaper than a new ECM though!
1942 WLA45 chop, 1999 FLTR(not I), 2000 1200S

Online rigidthumper

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Re: Sportster 883 has Misfire on Front Cylinder
« Reply #2 on: July 27, 2017, 11:50:02 AM »
  :up: :agree:  Pins and wires fail long before ECMs and coils.
If you never measure your work, you can assume it's perfect.
Doesn't make it so.

Offline 72fl

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Re: Sportster 883 has Misfire on Front Cylinder
« Reply #3 on: July 28, 2017, 03:50:02 AM »
Unplug the ECM connection and reinstall make sure it is completely connected.