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Guest Message by DevFuse
 

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1990 Legacy- tach doesn't work


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6 replies to this topic

#1 newsance

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Posted 17 November 2006 - 03:41 PM

Ok, so I just bought a 1990 Subaru Legacy AWD. The car runs great, and i got it for a song ($900).

It has a couple of issues I am trying to track down.

First and foremost, The tach does not work- it just sits at 0. So, in the interests of tracking this down...

Where does the tach signal come from? The engine or the ECU?

Is this a common thing? If so, what's the usual culprit?

#2 ericem

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Posted 17 November 2006 - 03:56 PM

well, it used a speed cable for the tach, not a sensor, so check to see if its connected, also i heard there is a piece that often fails,but i cant remember what the peice was, someone odd to know.

#3 lmdew

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Posted 17 November 2006 - 05:45 PM

If you need a dash or other parts, call me. I'm in the springs, Larry 268-9750.

#4 Richard1296

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Posted 17 November 2006 - 06:22 PM

Check the fuse box for a blown fuse. The tach's power
is fused.

Richard

#5 newsance

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Posted 17 November 2006 - 07:10 PM

well, it used a speed cable for the tach, not a sensor, so check to see if its connected, also i heard there is a piece that often fails,but i cant remember what the peice was, someone odd to know.


I strongly doubt it is using a cable for the tach. Certainly you are thinking of the speedometer?

#6 ericem

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Posted 17 November 2006 - 07:12 PM

I strongly doubt it is using a cable for the tach. Certainly you are thinking of the speedometer?


OOHH!! lol, sorry, didnt realize the tach wasnt a speed odometer, well ya check out the fuse, and check engine light?

#7 nipper

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Posted 17 November 2006 - 07:47 PM

OOHH!! lol, sorry, didnt realize the tach wasnt a speed odometer, well ya check out the fuse, and check engine light?


:confused: :confused: :confused:

The tach signal either comes from the ecu or the ignitor, i don't remeber which.


nipper




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