dixiebuyer

So my 96 ls threw a "left bank too rich" code the other day. I cleaned the throttle body and fixed the code. Now my tach doesn't work. Is this just a coincidence? Any ideas of what I might have done?

thanks in advance

Thermactor

iTrader: (1)

bang on top of the dashboard like it owes you money

dixiebuyer

Thanks, I guess it was just a coincidence. One sharp blow and the tach jumped.

ls400rgr

My Tac and speedometer both will flat line for up to 5 minutes in the morning. then jump into action, other than feeding them coffee, has anyone experienced this on a '99 ls400? If so what was the fix

20sburning

I have the exact same problem. No idea what the fix is. Mine is also a 99

Sixdown

Same thing and it's happened on every single one of my previous LS400's. Common problem with these gauge clusters.

bravonext

thermactor writes the same thing everytime someone needs help with the tach or speedometer. I have a 1990 ls400 w/ 85k miles and the tach and speedometers move about 1/4 inch that's all. And appearently there is no remedy for it. I'm still waiting for a legit advice.

Thermactor

iTrader: (1)

Hey, don't knock my advice. 60% of the time, it works every time

The real remedy? Send it to a professional repair place for bucks.

greenrover

I don't know about the speedo but this is what I did for my lazy tachometer:
-open the gauge cluster and carefully grab the tach needle by its base
-pull outward until you feel or hear a little pop (or as much as you feel comfortable with)
-without letting go move the needle clockwise until you hear another light pop
-without letting go move the needle back to zero
-let go and it should stay there
-now move the needle up and let go, it should fall back to zero

This is what I did on mine and it has been working fine since (knock on wood).