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6G Celicas Forums > 6th Generation Celica > Engine/Transmission/Maintenance
yaj204
Where is the ground for the pcm/ecu located?
VavAlephVav
there are 4 different grounds on the ecu plugs E01 white/black, E1 brown, E02 white/black, E2 brown. which pin position varies depending on which year you have but they all go up through the wirelimb out the passenger side firewall conduit and come out and bolt to the intake manifold to a bolt between injecter 2 and 3. it's easier to see from underneath.
from what I understand there is supposed to be a braided ground strap running from one of the bolts on the manifold to the firewall.
Smaay
look on the back of the intake manifold. you should see the grounds bolted down there
yaj204
Thanks alot... Every helpful
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