Autometer digital tach signal wire??

kroz123 · Post by **kroz123** » Sat Nov 08, 2008 11:27 pm

Hi guys I just purchased an Autometer digital cobalt tach and I was wondering if anybody knows what wire the signal of the car's tach is.

Anybody knows let me know,

Thanx,

Arvin

PS: I have an 2004 Chevrolet Optra A/T

kroz123 · Post by **kroz123** » Thu Nov 20, 2008 12:01 pm

Bump.

Anyone please help.

jidasas · Post by **jidasas** » Thu Nov 20, 2008 2:36 pm

Try asking existence...he has the first thread in aftermarket and highperformance section...just pm him...he has an optra turbo so I'm sure he's had to find that wire.

Jimmy

kroz123 · Post by **kroz123** » Fri Nov 21, 2008 1:16 am

I have PM him twice but still no answer

jidasas · Post by **jidasas** » Sat Nov 22, 2008 4:52 am

give him a few days...he's very busy. He'll get back to you.

Jimmy

kroz123 · Post by **kroz123** » Mon Nov 24, 2008 3:11 am

Hey thanx Jimmy and yeah I did get a hold off him.

Arvin

jidasas · Post by **jidasas** » Mon Nov 24, 2008 5:53 pm

no problem...did he have your answer?

Jimmy

kroz123 · Post by **kroz123** » Mon Nov 24, 2008 10:47 pm

Yeah Jimmy sort of cuz, but I'm waiting on his reply on my next ?

Arvin

exist3nce · Post by **exist3nce** » Mon Nov 24, 2008 11:13 pm

So I thought I might as well reply here so anyone else can see it too..

It depends on what kind of signal your tachometer is looking for. You can try the "engine speed signal", and if that doesn't work try either of the "ignition coil timing control". My AVCR reads rpm from the coil, but not all gauges can use that signal.

kroz123 · Post by **kroz123** » Mon Nov 24, 2008 11:15 pm

Hey Jason well mine does too, well the gauge does

But can I use which from the two?

And where on the plug is it and what color wire.