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MSS54 knock threshold
Posted: Mon Jul 26, 2021 7:03 pm
by jhec23
What is the best way to raise or disable the knock to force the dme to run a specific timing. Trying to diagnose a low timing at WOT and figure out if the dme is pulling it because of knock detection. Thanks!
Re: MSS54 knock threshold
Posted: Mon Jul 26, 2021 8:15 pm
by Renovelo
We haven't tried to disable knock on MSS54, but you could try modifying the two "Knock - Ignition retard" parameters under the Knock category in ByteTuner. Another idea is to modify the uncategorized parameters called "K_KR_TMOT_MIN" or "KL_KR_RF_MIN".
Re: MSS54 knock threshold
Posted: Sat Oct 15, 2022 10:30 am
by RyanR
Did you ever get this sorted? I'm having a similar issue where I'm hitting a max of 28 degrees of timing on the top end on all cylinders except 5 and 6 which are maxing out at 22. I'm commanding 31 degrees at 7000rpm+ but it won't ever get close to that. I've performed a compression test and all cylinders are even. I'm starting to believe my issue might be with the knock sensors themselves. Running 93 octane fuel, AFRs are 12.8 at WOT.