2003 350z will only start on second try
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2003 350z will only start on second try
Hello, I have searched this issue several different places and it seems like a few people have had a similar problem but not exactly the same.
I have a 2003 350z that will crank on the first attempt then I have to turn the key back a notch, wait ~3-5 seconds for everything to reset then it'll start up (slowly) on the second try.
I've tried injector cleaner that was suggested to someone else, that didn't help the problem. A fellow who was having a similar problem replaced the spark plugs and the problem went away for a week then came back.
I think perhaps it could be something to do with the fuel pump assembly. The car has a return fuel line (which I don't think came stock, not sure) and an adjustable fuel pressure regulator. I just purchased the car a few days ago and it was set on 44 psi. I upped the pressure to 51, which I think is closer to stock, but that hasn't fixed the problem either. Has anyone had and fixed this problem or have any suggestions? Thanks in advance for any tips.
I have a 2003 350z that will crank on the first attempt then I have to turn the key back a notch, wait ~3-5 seconds for everything to reset then it'll start up (slowly) on the second try.
I've tried injector cleaner that was suggested to someone else, that didn't help the problem. A fellow who was having a similar problem replaced the spark plugs and the problem went away for a week then came back.
I think perhaps it could be something to do with the fuel pump assembly. The car has a return fuel line (which I don't think came stock, not sure) and an adjustable fuel pressure regulator. I just purchased the car a few days ago and it was set on 44 psi. I upped the pressure to 51, which I think is closer to stock, but that hasn't fixed the problem either. Has anyone had and fixed this problem or have any suggestions? Thanks in advance for any tips.
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