Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

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Old Apr 18, 2008 | 12:40 PM
  #1  
HDRoach's Avatar
HDRoach
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Intermediate
Joined: Apr 2008
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Default Check Engine Light

Hi,

With some great advice from a few of the members on pipe installation torque values I was able to complete my upgrade yesterday.

Installed the SE Stage 1 Air kit, Porker Switchblades (Vance & Hines)and a Fuelpak on my 03 FXST with EFI.

Punched in the settings and went riding.

Out for a couple hours and the bike was running great. Just about a mile from home while sitting at a stop light Inoticed my check engine light wascoming on intermittently. Can't honestly say for sure, but when it was on the bike seemed to idle a little rougher, but not 100% sure it wasn't just imaginary. This happened 3 or 4 times, only on for a couple seconds each time.When I got home, I gave it a couple of minutes. Switched on the ignition on again. Fuel injection system primed, all seemed okay, butwhen I tried to start, it half cranked and went dead.

Pulled the seat and found my negative battery bolt had loosened about 1 - 1 1/2rotations. Tightened it up, metered the battery and tried again. Bike fired up fine. Gave it a couple tries and no probs.

Now I've noticed the checkengine light comes on (red) for the 4 seconds, goes off for 4 seconds and then comes on again for 8 seconds. According to the manual, thismeans a functional error is stored (although no current trouble code exists).

I have owned the bike since November, but this was only the second time riding it after the winter.

The questions I have are:

Is the check engine light always red?

Could the problems with the initial check engine light during my ride be a result of the loose battery connection?

And, could the Functional error, causing the check engine light to come on again for the 8 seconds, also be a result of this?

Am going to get it in to a tech as soon as I can as I am worried that it maybe related to my upgrades. But am almost convinced that it is related to the battery connection because the bike just ran so well for the 70 - 100 miles I put on it.

 
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Old Apr 18, 2008 | 01:54 PM
  #2  
oldfartjc's Avatar
oldfartjc
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Joined: May 2005
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From: Glendale, AZ.
Default RE: Check Engine Light

Just go to the D.I.Y. part of this forum and under the Engine Diag. section will be almost everything you need to know about reading and clearing the code that has been set. The link is below.

https://www.hdforums.com/forumid_247/tt.htm
 
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Old Apr 18, 2008 | 04:01 PM
  #3  
HDRoach's Avatar
HDRoach
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Default RE: Check Engine Light

Thanks... Appreciate your reply. Have printedout the info in a couple of those posts and will give it a shot when I get home!
 
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