Idle issue remains
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Joined: Aug 2018
Posts: 66
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From: Illinois
Idle issue remains
2016 FXDB, 12k miles.
Have a low idle when coming to a stop. 800-900. It slowly fixes itself every time. Almost seems like it needs to find its swear spot. Like it is lost. No codes. No other issues.
I have replaced IAC,PLUGS, TPS, cleaned throttle body, cleaned speed a crank sensor. I even purchased a PV to try a new map and it was actually worse so I upload the original tune that has been wonderul for 11k now. I am running out of ideas. Leaning towards ECM. Anyone with the same issue that has some input would be great. Not sure what else to do at this point.
Have a low idle when coming to a stop. 800-900. It slowly fixes itself every time. Almost seems like it needs to find its swear spot. Like it is lost. No codes. No other issues.
I have replaced IAC,PLUGS, TPS, cleaned throttle body, cleaned speed a crank sensor. I even purchased a PV to try a new map and it was actually worse so I upload the original tune that has been wonderul for 11k now. I am running out of ideas. Leaning towards ECM. Anyone with the same issue that has some input would be great. Not sure what else to do at this point.
Stellar HDF Member
Joined: Feb 2013
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From: Dallas, Texas
Stop throwing parts money into it. No error codes, just ride it. At some point, there will be an error code. Then ya get to spend money. I cured those kind of problems with my 07 Dyna by converting it to a Mikui carb.
Seasoned HDF Member
Joined: Jul 2008
Posts: 9,278
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From: southeast PA
He said he replaced the IAC. I don't know if he tried cleaning it first.
To the OP: if you installed a tuner and it ran worse you might have a mechanical problem like an intake or exhaust leak. But before you buy a new exhaust and intake you should check for leaks.
To the OP: if you installed a tuner and it ran worse you might have a mechanical problem like an intake or exhaust leak. But before you buy a new exhaust and intake you should check for leaks.
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Joined: Aug 2018
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From: Illinois
No leaks ! Its crazy. I cant figure it out. The new tune was a map made by Powervision. The original tune was dynod (better tune) so I put that back on.
I only changed tunes to see if it was a map issue.
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And it may never throw a code
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Joined: Oct 2008
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From: here
Just throwing it out there, I had an idle issue some time ago, wasn't always low, was erratic, but basically below the idle speed I had set in my tuner.
Anyway, kept messing with stuff to get it to stabilize, after several attempts IAC, Injectors etc. ended up being dirty in tank fuel filters.
I must have gotten some really bad gas, probably just after the fuel truck filled their tanks, **** gets stirred up, was serious sticky black **** that gummed up the fuel mat filter and the pump filter.
After replacing both of those, nice smooth stable idle at whatever RPM I set.
Good luck
Anyway, kept messing with stuff to get it to stabilize, after several attempts IAC, Injectors etc. ended up being dirty in tank fuel filters.
I must have gotten some really bad gas, probably just after the fuel truck filled their tanks, **** gets stirred up, was serious sticky black **** that gummed up the fuel mat filter and the pump filter.
After replacing both of those, nice smooth stable idle at whatever RPM I set.
Good luck
Thread Starter
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Advanced
Joined: Aug 2018
Posts: 66
Likes: 1
From: Illinois
Just throwing it out there, I had an idle issue some time ago, wasn't always low, was erratic, but basically below the idle speed I had set in my tuner.
Anyway, kept messing with stuff to get it to stabilize, after several attempts IAC, Injectors etc. ended up being dirty in tank fuel filters.
I must have gotten some really bad gas, probably just after the fuel truck filled their tanks, **** gets stirred up, was serious sticky black **** that gummed up the fuel mat filter and the pump filter.
After replacing both of those, nice smooth stable idle at whatever RPM I set.
Good luck
Anyway, kept messing with stuff to get it to stabilize, after several attempts IAC, Injectors etc. ended up being dirty in tank fuel filters.
I must have gotten some really bad gas, probably just after the fuel truck filled their tanks, **** gets stirred up, was serious sticky black **** that gummed up the fuel mat filter and the pump filter.
After replacing both of those, nice smooth stable idle at whatever RPM I set.
Good luck
Thank you so much! Going to run Star Tron through today and then have my in tank filter changed and have the lines checked as well.