Toyota COPs tach signal
01-13-2014, 09:14 PM
Post: #1
Toyota COPs tach signal
The 1ZZFE coils I am using have a tach output but what kind of signal do they put out? I tried using a oscilloscope connected to ground but I got no signal. I did not try with the scope connected to 12 V or by using a pull up resistor and this will be next if I can't find a certain answer.

Sarcasme is just one of the things I offer Wink

Daily driver: '92 Toyota Carina E GTI
Rebuilt project: '86 Levin hatch
[Image: AEU86 AE86 - Toyota COPs tach signal]
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01-14-2014, 10:07 AM
Post: #2
Toyota COPs tach signal
It's not a tach output but a feedback (confirmation) signal.
Far as I know, it's a 5V square wave signal, like in most Toyota.
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01-14-2014, 10:39 AM
Post: #3
Toyota COPs tach signal
You are right it is a feed back to the ECU but I would like to use it as a tach signal Smile But I don't get at 5 V signal.

Sarcasme is just one of the things I offer Wink

Daily driver: '92 Toyota Carina E GTI
Rebuilt project: '86 Levin hatch
[Image: AEU86 AE86 - Toyota COPs tach signal]
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01-14-2014, 10:51 AM
Post: #4
Toyota COPs tach signal
I knew we where talking about that few years ago.
Look here:
http://www.aeu86.org/viewtopic/ae86/t/10...c/start=25
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01-14-2014, 02:49 PM
Post: #5
Toyota COPs tach signal
Nice! Did you ever get the S2k dash working?

Sarcasme is just one of the things I offer Wink

Daily driver: '92 Toyota Carina E GTI
Rebuilt project: '86 Levin hatch
[Image: AEU86 AE86 - Toyota COPs tach signal]
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