Later wiring harnesses in ST165

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Later wiring harnesses in ST165

Postby Maet » Mon Oct 19, 2020 6:06 pm

A lot of the wiring in my 165 wiring harness is brittle and old, is there any other options for a different wiring harness all together, such as a 205 or later 3SGTE harness?
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1988 Toyota Celica

Re: Later wiring harnesses in ST165

Postby grip-addict » Mon Oct 19, 2020 10:29 pm

Later revisions will plug in to the ecu but the wiring mapping is different between generations. The pins will go to different places, sensors, etc. Take a look at the ecu diagrams at to see the differences.
This could be quite a large undertaking if you are uncomfortable with wiring.
The closest harness would be from a st185 but you will have to deal with the intercooler differences at a minimum.
Good luck!
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Re: Later wiring harnesses in ST165

Postby simple » Tue Oct 20, 2020 12:51 am

Ask Doug from Wiregap to make you one. He may have enough leftovers to make it.
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