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Driver side coils no fire

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Old 10-22-2009, 09:59 PM
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Default Driver side coils no fire

Friends 02 z is only firing on the right bank. Cant figure out what would do it all of the wires seem ok on that side, o2 sensors, relay? Any help would be appreciated!
Old 10-22-2009, 10:12 PM
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Check the INJ1 fuse on the lower block.
Old 10-22-2009, 10:16 PM
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Cool will do. Ill look at that tomorrow, its flooding hard on that side since its not firing.
Old 10-22-2009, 10:22 PM
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If your getting fuel, then it's not the fuse. That circuit also powers the driver's side injectors.

Make sure the pink wire in the harness has 12V with the ignition on, and check if the black wire is ground. These 2 wires are common for all the coils on that side.
Old 10-22-2009, 10:23 PM
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Ok I was wondering which wire it was. Ill check into that also, its flooding out on that side so its def getting fuel. He just swapped headers so im not sure if he pinched/broke a wire or what.
Old 10-22-2009, 11:12 PM
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My money's on the ground.

Rig a temporary ground to the black wire in the harness and fire it up to confirm.




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