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#1 |
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Hey guys, hope you've been well. Car just made 100K miles. My plugs finally shit the bed a month or two ago, so I replaced all of them and all of my ignition coils with OEM parts.
Last week I got cylinder 3 misfire. Like...completely dead. Had to tow the car. Swapped the coil into cylinder 1 to see if it was the plug or the coil - lo and behold, cylinder 1 started misfiring. So I figured, shitty coil, replaced it. Problem resolved, no biggy. Now today, after a couple of boosts (Sprintex 210) I'm getting a cylinder 1 misfire. It only seems to happen at idle and low load. I have a replacement coil and plug - but I would really like to solve the root of the issue. Everything looks fine on my OSDB reader. Also I'll mention that my car hasn't pulled any timing, so I don't believe the issue to be knock-related. Anybody have any ideas? Thanks in advance.
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#2 | |
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#3 |
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What brand of plugs do you have. I don't recall seeing the electrode that recessed in standard oem plugs.
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The Following 2 Users Say Thank You to blsfrs For This Useful Post: | Opie (06-06-2024), whataboutbob (06-05-2024) |
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#4 |
meow
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lol spark plug modz
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The Following User Says Thank You to Ultramaroon For This Useful Post: | DarkPira7e (06-05-2024) |
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#5 |
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2 threads in 2 days for the exact same thing with the exact same post?
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and have you ever looked at logs while driving it hard or you have no clue if it s detonating ?
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#7 |
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Just DENSO oem plugs that keep failing. 2 posts on 2 threads because I didn't get a response in over a day on this one.
Yes, I have logged my pulls, am not knocking or pulling timing. Sent from my Pixel 7 using Tapatalk
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#8 | |
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The Following User Says Thank You to riboyster For This Useful Post: | blsfrs (06-07-2024) |
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If it didn't start that way, then you have some detonation or something wrong going on inside that cylinder.
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Is the knock sensor muted in your tune?
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how much PI% do you have at high rpm high load?
how far is the end of injection to the spark ignition? there is a value for that in ecutek measured in milliseconds do you have access to an external wideband afr sensor ? |
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#12 | ||
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#13 |
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kek
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#14 |
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I'm chalking it up to chinese plugs. No knock, nothing about the tune or timing or fueling or scaling has changed since I swapped the plugs. Seems to run fine now.
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boost, coil pack, ignition, misfire |
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