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ECU ground wire? #55158 Oct 23, 3:39pm Oct 23, 3:39pm
Joined: Sep 2003
Posts: 11
Netherlands, Europe
2000 Silver Toyota Celica GT Turbo
JongBing OP
Member
2000 Toyota Celica GT Turbo
JongBing OP
2000 Silver Toyota Celica GT Turbo
Member
2000 Toyota Celica GT Turbo

Joined: Sep 2003
Posts: 11
Netherlands, Europe
ECU ground wire?
I'm installing my Apexi autotimer and i'm having some problems with getting it to work. I called Apexi and they helped me out a bit.

I need to find the ECU ground wire. Is it near the o2 wire under the carpet and next to the interior fusebox on the passenger side?
I searched the forum for it and found something for the Celica GTS. Says the ECU ground wire is the black/brown one(closest to ecu).

Not sure what the (closest to ecu) part means.
Can anyone help me out here? Thanks in advance.

___________________________________________
Celica GT(europe version), KKK K04 BorgWarner turbo, wiseco 8.8:1 pistons, crower rods, ACT XT clutch, bigger injectors, engine bore at 13.011"(79.5mm), 30cm/20cm/10cm intercooler, oil cooler, TRD SS, Full Kaminari body kit, Laser twin end pipe, HKS SSQV BOV, dual pillar gauge pod, Defi BF oil temp & EGT gauge, Defi control unit II, Greddy E-manage piggyback ECU, Greddy Profec e-01 boostcontroller, Greddy Oil Catch tank, Apexi Autotimer, TTE wing, 17" mb014 rims, Avon 3 215/40/17 tires, lowboost at 0.6bar(around 8PSI), highboost at 0.8bar(around 11-12PSI).
Dyno's to come...

Bing

Re: ECU ground wire? [Re: JongBing] #55159 Oct 23, 7:48pm Oct 23, 7:48pm
Joined: May 2002
Posts: 3,294
Riverside, CA
2001 Spectra Blue Mica Toyota Celica GTS
Steven
ECelica Staff
2001 Toyota Celica GTS
Steven
2001 Spectra Blue Mica Toyota Celica GTS
ECelica Staff
2001 Toyota Celica GTS

Joined: May 2002
Posts: 3,294
Riverside, CA
Why do you need the ECU grounding wire? If you need to ground the autotimer, just ground it to the frame.

Re: ECU ground wire? [Re: JongBing] #55160 Oct 24, 6:45am Oct 24, 6:45am
Joined: Sep 2003
Posts: 11
Netherlands, Europe
2000 Silver Toyota Celica GT Turbo
JongBing OP
Member
2000 Toyota Celica GT Turbo
JongBing OP
2000 Silver Toyota Celica GT Turbo
Member
2000 Toyota Celica GT Turbo

Joined: Sep 2003
Posts: 11
Netherlands, Europe
Can't. If I connect the o2sensor wire then I'm forced to ground the autotimer to the ECU ground.

Not sure why, but that's what the manual says. Also, I called apexi and they say it requires to be grounded on ECU ground. frown


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