Erratic Spark Source @ Idle
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Serfma
- Posts: 82
- Joined: 2021 Apr 17, 00:07
- Location: Central KY
- Vehicle Information: 1996 Ford Mustang Cobra, 4.6L 4v, CDAN4 / LLX3
Erratic Spark Source @ Idle
DIY tune to get it running around town for now, but I have an 800rpm idle set that's incredibly rough due to spark source jumping from idle feedback, idle feedback clip, base, repeat very rapidly. Not certain that's supposed to be normal but is the only thing I can find. Fueling sits around 1.0 lambda. If I even slightly tap the gas pedal everything's normal. No other issues elsewhere. What might be the cause?
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decipha
- Posts: 5051
- Joined: 2021 Feb 15, 12:23
- Location: Metairie, LA
- Vehicle Information: Work Truck
'19 F-150 3.3L
Re: Erratic Spark Source @ Idle
thats normal
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Serfma
- Posts: 82
- Joined: 2021 Apr 17, 00:07
- Location: Central KY
- Vehicle Information: 1996 Ford Mustang Cobra, 4.6L 4v, CDAN4 / LLX3
Re: Erratic Spark Source @ Idle
thanks. temporary DIY tune for being able to drive it around town for now until the real tune comes, thinking motor mount on one side is loose. appreciate it.
anything at idle in particular that could be causing the rough idle? i'm sure isc duty cycle is all over the place and needs tuned. afr 1.0 lambda, rpm just bouncing around and won't hold steady.
anything at idle in particular that could be causing the rough idle? i'm sure isc duty cycle is all over the place and needs tuned. afr 1.0 lambda, rpm just bouncing around and won't hold steady.