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  #1  
Old 05-23-2014, 10:50 PM
stateranger stateranger is offline
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Default Occasional rough idle and pinging.

This issue started yesterday morning. When accelerating I'm getting pinging and a miss when it happens and when at a light it idles rough, but these issues don't happen every time I stop or accelerate.

Things I've done so far.
1 I checked for codes and got a pending code P0172 system to rich but it has since gone away.
2 checked for vacuum leaks and everything is good there.
3 Fuel pressure test koeo 67 koer 67, fuel filter is fairly new.
4 ran a live data readout that show that the O-2 and tps are functioning correctly, the maf seemed to be reading right but I'm going to recheck when I drive to work then check when I head home since the issue did occur this morning but did on the way home.
Btw the maf is spotless.
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2014 F150 xl 3.7 6 speed auto.

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  #2  
Old 05-24-2014, 04:11 PM
stateranger stateranger is offline
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Default Re: Occasional rough idle and pinging.

Wow, not even a guess?lol

Doesn't matter anyhow I got it solved by reversing the ignition coil harness mod I did awhile back. It does matter which plug fires first.
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2014 F150 xl 3.7 6 speed auto.

Quote:
Originally Posted by pk9298 View Post
HELL TO THE NO!! Abort abort abort!! That's the first thing to go!!! Ewwwww! I'm not no vampire! I don't enjoy red tea

Last edited by stateranger; 05-30-2014 at 08:00 PM.
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  #3  
Old 12-09-2014, 10:23 AM
stateranger stateranger is offline
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Default Re: Occasional rough idle and pinging.

It actually was caused by a loose connection to the 1-4 coil.
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2014 F150 xl 3.7 6 speed auto.

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HELL TO THE NO!! Abort abort abort!! That's the first thing to go!!! Ewwwww! I'm not no vampire! I don't enjoy red tea
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