Around 1.5k - 2.5k during acceleration in 3rd/4th gear when I'm almost lugging I'll have this noise:
Is this pre-ignition? Knock sensors do indeed pick it up and retard timing by 5*, but I am not sure if it's something else and knock sensors think it's knock or if it actually is. I'm going to pull timing in that area by around 10* to start with and see if it goes away.
96 Cobra, 4.6 4v, 2.1 KB (not in boost during this)
Is this pre-ignition? Knock sensors do indeed pick it up and retard timing by 5*, but I am not sure if it's something else and knock sensors think it's knock or if it actually is. I'm going to pull timing in that area by around 10* to start with and see if it goes away.
96 Cobra, 4.6 4v, 2.1 KB (not in boost during this)