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Platform: Theta

How do I fix misfiring

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Old June 19th, 2023 | 3:08 PM
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Will be updating better photos in a few. Will show photos with engine off and engine running.
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Old June 19th, 2023 | 3:14 PM
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this time please wipe the dirt off the lens and rotate the images so we can see them. Thanks.
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Old June 19th, 2023 | 5:14 PM
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These are with engine off. Will post with engine on in another post
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Old June 19th, 2023 | 5:17 PM
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Engine is on these photos








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Old June 19th, 2023 | 5:25 PM
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So all the misfires are on cylinder 5, correct?

inspect the #5 spark plug
try swapping coils and injectors around to help narrow down the issue.
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Old June 19th, 2023 | 5:39 PM
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Seems like it. I will switch the wires for now due to the injectors are under the manifold and don’t want to remove that if I don’t have to.
can’t switch coils bc it’s one large coil not individual ones .
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Old June 19th, 2023 | 5:43 PM
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Originally Posted by mountainmanjoe
So all the misfires are on cylinder 5, correct?

inspect the #5 spark plug
try swapping coils and injectors around to help narrow down the issue.
if I’m gonna switch the injectors around I will replace all 6 of them.
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Old June 19th, 2023 | 5:52 PM
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I wouldn't replace working injectors. OEM are discontinued, and you never know what you're going to get with aftermarket.
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Old June 19th, 2023 | 5:55 PM
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Wouldn’t a bad injector throw a code?
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Old June 19th, 2023 | 5:58 PM
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yes. misfire
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