Originally posted by FS560+Sep 30 2005, 02:21 PM--><div class='quotetop'>QUOTE(FS560 @ Sep 30 2005, 02:21 PM)</div>
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<!--QuoteBegin-JayBo
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@Sep 29 2005, 06:27 AM
I'm guessing this would be a good mod for me to consider? My 99 pcm pings like no other.
How do you know you are getting detonation? Do you hear it?
If the knock sensor is working, it should retard timing so quickly that you may not hear enough of it to recognize it as detonation.
I also thought the problem with the 99 PCM to be false knock detection, wherein the PCM identifies non-detonation sound as detonation and retards the timing when there was no real detonation.
Does the PCM flash a message on the dash when it retards the timing a certain amount? [/b]