Fatboy with problems. Help
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Stage II
Joined: Feb 2013
Posts: 2
Likes: 0
From: Alabama
Fatboy with problems. Help
My dads 03 hd fatboy recently had the csps "crankshaft position sensor " go bad while on a trip so was towed to the near by hd dealer. And since then the check engine light will sometimes come on going down the road . And has started running rough. So checked the power commander and for me to get the afr down to 13.2 -13.8 I was having to put over 100 points of fuel into the programmer and the reading is still going crazy from time to time. So checked the fuel pressure and have a reading of around 50-60 psi.
Where do I go from now. Any advice is appreciated
Where do I go from now. Any advice is appreciated
Road Master
Joined: Oct 2008
Posts: 970
Likes: 19
From: Philippines
Very interesting situation. I'll be watching this thread closely. I assume that since the Check Engine Light is coming on, there are fault codes stored. Retrieving these codes may be a starting point.
Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
Likes: 19,811
From: Centennial, CO
Welcome to the Forum from Colorado!
Here is a link to diagnostic codes that I hope helps:
https://www.hdforums.com/forum/softa...odes-dtcs.html
Also check throttle position sensor.
Here is a link to diagnostic codes that I hope helps:
https://www.hdforums.com/forum/softa...odes-dtcs.html
Also check throttle position sensor.
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