Autogas 97 Forester

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=140845
Printed Date: April 29, 2024 at 11:21 AM

Topic: Autogas 97 Forester

Posted By: chris130
Subject: Autogas 97 Forester
Date Posted: February 13, 2016 at 10:47 AM

I have a 97 Subaru Forester T/tb Japanese (ej20 turbo engine)

Iam looking for:
a) RPM (tacho) signal wire
and
b) Ignition (12V) signal wire

Engine compartment wires, ECU pins,
and any wiring diagrams will be very helpful.
thanks

Replies:

Posted By: geepherder
Date Posted: February 13, 2016 at 11:07 AM

for 1998:

https://www.the12volt.com/installbay/alarmdetail/1970.html

https://readyremote.com/main.asp?action=select&yr=2411&product=Remote%20Start&make=Subaru&model=Forester#

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My ex once told me I have a perfect face for radio.

Posted By: chris130
Date Posted: February 13, 2016 at 12:04 PM

my forester's coil pack has only 3 wires. Any idea which one to use for tacho signal? attached photo posted_image

Posted By: geepherder
Date Posted: February 14, 2016 at 12:10 AM

You'll need to probe and see. Set your multimeter do AC voltage, black lead to ground, red lead to suspect wire. Start the engine. Your voltage will vary with engine speed.

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My ex once told me I have a perfect face for radio.

Posted By: chris130
Date Posted: February 14, 2016 at 5:37 AM

Measured with multimeter

1) RED / green wire - It seems that we found rpm signal
0.5 VAC to 2.0 VAC (idle - accelaration).
Is it an acceptable range or it doesnt matter?

2) light blue wire
Gives 12VDC when the switch turn to ignition position.

3) yellow/red wire should be the ground

Posted By: geepherder
Date Posted: February 14, 2016 at 9:01 PM

That'll work. Hook it up and reward yourself with a beverage.

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My ex once told me I have a perfect face for radio.

Posted By: chris130
Date Posted: February 20, 2016 at 2:08 PM

Hello
thank you so much for your help
I have another question in case you know.
Im trying to connect GAS ECU wires (optional) to OBD/CAN (6 & 14 pin).
Are there any different kinds of OBD II ? i dont have any wires on 6 & 14 pin of the OBD plug.

thanks

posted_image

Posted By: geepherder
Date Posted: February 21, 2016 at 7:42 AM

Yes there are different protocols for OBD II, but your vehicle predates the CAN bus systems. I wouldn't your factory pinout though.

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My ex once told me I have a perfect face for radio.