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Forum: MKIII Supra

04-24-2011, 10:00 PM

Replies: 7

HAC sensor wiring diagram.. HELP plz..

Views: 10,945

Posted By cre

Look at the diagrams on my site for the '87 - '88...

Look at the diagrams on my site for the '87 - '88 pinouts and cygnusx1 for the '89 - '90. Most are similarly named.... I usually buy an old harness and replace the wires one at a time. Have fun, it...

Forum: MKIII Supra

04-24-2011, 08:23 PM

Replies: 7

HAC sensor wiring diagram.. HELP plz..

Views: 10,945

Posted By cre

Are you trying to troubleshoot it or bypass it? ...

Are you trying to troubleshoot it or bypass it?

EDIT: If you're looking to bypass it, here's my site with info on MAFT Pro installations and as such info on bypassing the HAC sensor:...

Forum: MKIII Supra

04-24-2011, 08:02 PM

Replies: 7

HAC sensor wiring diagram.. HELP plz..

Views: 10,945

Posted By cre

Vc is just a constant voltage signal provided by...

Vc is just a constant voltage signal provided by the ECU to certain sensors... it's a power supply line for lower power devices. Should be around 4.8v with load.

Forum: MKIII Supra

04-24-2011, 06:48 PM

Replies: 7

HAC sensor wiring diagram.. HELP plz..

Views: 10,945

Posted By cre

The GTE wasn't available in any '86 models (not...

The GTE wasn't available in any '86 models (not in any '86.5 models either ;) ). The HAC is present in ALL KVAFM equipped 7M's, it's just been moved inside the ECU on later models. You need a TSRM or...

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