2011reptar
Member
Did you have chain slap or anything else associated with it?I had a ford 351 doing what you described and it was the timing chain tensioner.
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Did you have chain slap or anything else associated with it?I had a ford 351 doing what you described and it was the timing chain tensioner.
If you look at you first data chart and compare the misfired cylinders to the firing order you will find your answer.This is what I see after a 5 mile drive and idling for about 15 mins.
View attachment 473171
And this is what I see after holding the idle at 1300Rpm for about 3 mins. Nothing close to setting off a light, but clearly missing more on cyl 6. I have swapped plugs, coils and wires twice and nothing new. Lt Fuel trims as low as -8.
View attachment 473172