Spark Advance trouble? 5.4L
01-06-2019, 06:12 PM
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Spark Advance trouble? 5.4L
I'm having trouble with my 2009 5.4L phasers are locked with 5-star VCT tune.
I have intermittent rough idle so I was looking at it today and I found that with each rough idle the spark advance goes from 15-16 (smooth idle) to jumping between 2-28 degrees (noticeable rough idle). This happens every 10 seconds or so. I'm also getting an error reading fuel bank 2 and I'm not sure if that's related.
I have intermittent rough idle so I was looking at it today and I found that with each rough idle the spark advance goes from 15-16 (smooth idle) to jumping between 2-28 degrees (noticeable rough idle). This happens every 10 seconds or so. I'm also getting an error reading fuel bank 2 and I'm not sure if that's related.
