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jdm B16a Low voltage

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Old Oct 12, 2020 | 04:37 AM
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From: east lansing Michigan
Default jdm B16a Low voltage

googled and seems like the common answer is I should have 14v and I have 12.2v that drops to about 10v at higher then 5k RPM. I replaced the alternator once but am now seeing that I should have went with OEM. I am having issues finding an OEM alt. I am really perplexed on why I am not spitting out full voltage. I have because I have heard about bad grounds, I actually have many grounds, 2 from engine to body, 1 form trans to body. the ECU ground is solid but I am contemplating running a wire from there to the chassis as well. this voltage drop coincides with a miss according to the datalog so I would like to figure out the voltage and see if the miss goes away. The miss has come and gone and various things I thought fixes it. Dead times, inline fuel pump pulling instead of pushing, etc. I unfortunately did not log when it worked so I dont know if the voltage was low at that point as well

thouhgts? ideas?

Odie

Last edited by autox19; Oct 12, 2020 at 04:43 AM. Reason: did NOT datalog when running fine
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