Fuel injector resistance
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From: Nashville
Fuel injector resistance
2003 350Z still dealing with P0300 code with poor performance and misfiring. I have changed all plugs with correct gaps, camshaft sensors with OEM Nissan parts, and checked all coil packs. They are exactly the same resistance and none are blistered. I had gotten a P0306 code previously but no coil pack blister there either.
I just pulled the upper intake off to get to the injectors . They are all reading 15.6 Ohms each exactly. I cleaned the pcv valve. I sprayed electric cleaner over all the injector connections.I read from an injector guy who posted out here, that electrical connections are the weak spot, and can create contact issues based on the seal not being the best design. It would seem 15.6 is high seeing I've read between 10 - 14 but all being the same, they aren't all bad at once.
I'm beginning to wonder about timing. In an old car, this would be easy for me to deal with, but all this variable timing is not something I'm not well versed with. So I am wondering about timing now, and maybe has jumped a chain link or something similar. Any thoughts would be appreciated as I am running out of ideas. The car was running exceptionally even with some codes here and there I tried to deal with, primarily pertaining with the camshaft. When it last ran well, it was shut down after having run well. The next time I started it, it was suddenly misfiring and running on 4 or 5 cylinders RIGHT AWAY.
I just pulled the upper intake off to get to the injectors . They are all reading 15.6 Ohms each exactly. I cleaned the pcv valve. I sprayed electric cleaner over all the injector connections.I read from an injector guy who posted out here, that electrical connections are the weak spot, and can create contact issues based on the seal not being the best design. It would seem 15.6 is high seeing I've read between 10 - 14 but all being the same, they aren't all bad at once.
I'm beginning to wonder about timing. In an old car, this would be easy for me to deal with, but all this variable timing is not something I'm not well versed with. So I am wondering about timing now, and maybe has jumped a chain link or something similar. Any thoughts would be appreciated as I am running out of ideas. The car was running exceptionally even with some codes here and there I tried to deal with, primarily pertaining with the camshaft. When it last ran well, it was shut down after having run well. The next time I started it, it was suddenly misfiring and running on 4 or 5 cylinders RIGHT AWAY.
Last edited by templars83; Oct 23, 2020 at 02:18 PM.
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