number two cylinder misfiring

1991 NISSAN SKYLINE
90,000 MILES • 2.6L • 6 CYL • TURBO • 4WD • MANUAL
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CHRISTOPHER MCDOWELL
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my number two cylinder is not firing. I have checked the wiring and coil pack with an ohm meter. All is good. I replaced the coil pack wiring harness, new plugs, new injectors as well. I pulled the plug and it gets spark. Also, it was wet.
Things I have done;
swapped coil packs, swapped plugs, replaced wire harness, ohm check all coil packs and wire harness and ignitor pack.
Dec 15, 2016 at 8:07 PM
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STEVE W.
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What was the plug wet with? Gas or coolant? Run a compression test and see what you have in all four. If they look good pull the valve cover and make sure they are okay, could be a flat lobe causing an issue.


Oh and thanks for your service.
Dec 15, 2016 at 8:50 PM
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CHRISTOPHER MCDOWELL
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Gas, I also have a new metal 1.2 mm gasket installed. There is no water in the oil, already checked that first.
Dec 15, 2016 at 9:03 PM
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STEVE W.
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One item that might be worth checking. You said new injectors. If you have access to an O-scope you could look at the waveform of another on vehicle injector and compare it to the one on number two. I am wondering if maybe the injector driver has a problem and is dumping extra fuel.
Dec 15, 2016 at 9:42 PM