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Thread: Part Throttle Knock Issue

  1. 04-20-2021 #1
    Doc Oc
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    Part Throttle Knock Issue

    Wondering if someone wouldn't mind taking a look at the attached log and giving me some thoughts? Car is a 17 Camaro SS with longtubes and ported msd. The tune was done remotely a couple months ago and seemed spot on but I had always had at least 35% ethanol in the tank until just recently. Been through a couple tanks of 93 and noticed some audible knock at part throttle with the pid on the aeroforce gauge giving readings up to 6 deg pulled. Assumed bad gas but have been through 2 tanks with no change....and also no knock at wot, so not sure if that's still a possibility. Ran the attached log and noticed that my stft's are adding a lot of fuel when it happens. Can anyone offer some insights? Hoping it's something little I can adjust myself but am pretty inexperienced.

    Thanks!
    Last edited by Doc Oc; 04-20-2021 at 08:26 PM.
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  2. 04-20-2021 #2
    Doc Oc
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    Resolved!
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  3. 04-20-2021 #3
    Brianw36
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    Quote Originally Posted by Doc Oc View Post
    Resolved!
    What did you find was the issue?
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  4. 04-20-2021 #4
    Doc Oc
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    Little too much timing in that range was all.
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