Hmm, well did you already check fuel pressure?
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Yeah. There’s a gauge at the rail. It’s 40psiHmm, well did you already check fuel pressure?
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Me too. Currently on jack stands right now so it can’t be driven so plugs will have to wait to see how they look after the new set. Think it could be an o2 sensor?I'm still stumped on the one spark plugs looking so clean compared to the others. That just leads me to believe it's contained to that one cylinder.
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My next step would be to buy or borrow one known good coil and move it around, starting with #7.
One lean injector could cause that issue.I'm stuck on that clean plug. Bad o2 sensors wouldn't cause one plug to be that clean.
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One lean injector could cause that issue.
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It could for sure. That wouldnt throw the prinary ignition coil fault though. Would it?
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How can I check an injector outside of resistance test?Since you replaced all coils, I would check for a plugged injector and also make sure that cylinder is getting power to the coil.
Those two things are what I would do next.
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YesThere isn’t any real easy way to check an injector for flow. If you had a buddy that has the same size injector, see if you could swap it out for testing.
Since it Check good resistance wise, you need to make sure there is flow thru the injector. You did verify voltage, correct?
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Getting worse it seems like