03 350z throwing P0300 code (random misfire)
#1
03 350z throwing P0300 code (random misfire)
Hey guys! So my car is throwing this code and was wondering if you guys can help me out. The car has LOUD random backfires at idle and when I went around the block as well.
Tomei headers
Z1 testpipes
Z1 filter
Lower intake runners cast cleaning
I did install CSF aluminium radiator and Mishimoto slim fans but I doubt that has anything to do with this.
The mistake I did was having the injectors out in the open when I was cast cleaning the lower runners. I did notice small metal shavings on the tip when I was about to install them. Cleaned them out as much I can but I'm assuming shavings went inside and causing a leak when the spark plug isn't igniting. I pulled all the plugs and they were all wet.
I do have HR injectors sitting in my garage. I searched around and found out that the DE and HR injectors are pretty close. Will I will need a tune if I install the HR injectors?
at 3 bar (43.5 psi)
DE injector flows 306cc/min
HR injector flows 309.25cc/min
Found the flow test here.
https://maxima.org/forums/all-motor/...omparison.html
Tomei headers
Z1 testpipes
Z1 filter
Lower intake runners cast cleaning
I did install CSF aluminium radiator and Mishimoto slim fans but I doubt that has anything to do with this.
The mistake I did was having the injectors out in the open when I was cast cleaning the lower runners. I did notice small metal shavings on the tip when I was about to install them. Cleaned them out as much I can but I'm assuming shavings went inside and causing a leak when the spark plug isn't igniting. I pulled all the plugs and they were all wet.
I do have HR injectors sitting in my garage. I searched around and found out that the DE and HR injectors are pretty close. Will I will need a tune if I install the HR injectors?
at 3 bar (43.5 psi)
DE injector flows 306cc/min
HR injector flows 309.25cc/min
Found the flow test here.
https://maxima.org/forums/all-motor/...omparison.html
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