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Old 12-23-2020, 11:33 PM   #9
Scooby Guru
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Join Date: Feb 2006
Chapter/Region: Tri-State
Location: NY
2005 TickingTimeBomb
Jr tuned TT Sleeved


Originally Posted by Vancouver98STi View Post
Not wishing to confuse the issue, but doesn't the ECU ground to the intake manifold? (It does on my '98.)

I believe those grounds are for injectors and coils. But yes they come from off the ecu not actually the coils and injectors themselves. from what I've gathered without looking at a fsm.

The ecu also has many other grounds. But they also go through the circuitry in the motherboard.
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