Thread: slow cold start
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      06-17-2021, 11:56 AM   #2
omgzirra_exe
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Drives: 4.4L M3, 1JZGTE IS300, N55B30
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could be a couple reasons. battery is the easy check if you haven't ever changed it, it's probably a good time to get one anyways.

the other items you should replace are all under the plenum so its either buy one by one and figure it out or just replace it all at once.. fuel breather valve, injectors, spark plugs, ignition coils.
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