breaking up under boost
Thread Starter
Burning Brakes
Joined: Mar 2014
Posts: 1,238
Likes: 203
From: Lexington South Carolina
breaking up under boost
I have developed an issue when under hard acceleration the engine starts breaking up under boost. I haven't done any logging in a while so i hooked up HP tuners and thought I would find a lean condition. Well its not running lean but when it starts breaking up it is showing up to 5 degrees of knock retard. Can a misfire show up as retard?
I have been running on 93 lately and haven't refilled on corn to see if it makes a difference. How many miles are you guys getting on a set of plugs? I might have 15k miles on mine.
I have been running on 93 lately and haven't refilled on corn to see if it makes a difference. How many miles are you guys getting on a set of plugs? I might have 15k miles on mine.
Acct Suspended APR 2026 by request
Joined: Dec 2010
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2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
what plugs and gap?... I had the same thing happen to me after switching to e85 and the weather got cool, it would break up at 5k and the log showed 5-6 degrees of knock but no lean condition and it drove perfectly fine otherwise... my plugs were gapped at .035 and I closed them to .030 and it solved the problem
