"dcrolin" <UseLinkToEmail@AutoForumz.com> wrote in message news:1_686205_edab37d3c93b73b50eec190eaa9c1b78@aut oforumz.com...

> Hello all...I have a 91 rex si with 68K miles. I have had continuing
> problems with my tach. After the car is warmed up the tach needle
> reads 0...bottomed. Sometimes it feels like it wants to stall, but it
> never does. I have addressed this as an idle problem, but I have tried
> everything, ie... new dizzy, new eacv, new plugs, wires, air filter,
> fuel filter. I have check all vacuum lines and there is no leak. I
> took it to a Honda dealer and they say its the tach not reading
> right...cause my ignition timing is dead on spec. If it is the tach do
> I have to replace the whole cluster? I don’t understand how it can be
> my tach if it reads correctly until my car warms up... Any insight or
> tips would be greatly appreciated. Also, I just installed a B&M short
> shifter, and it seems hard to get into gears...It was a little
> difficult before the short shifter. Any ideas on what I could
> do....THANKS!!!!

The igniter has one lead output called the tach output. If by chance
the igniter tach portion quits when the igniter gets hot then it a sign
of an igniter problems or heat dissipation problem (missing conducting
grease?) What you can do is to jump the tach output directly to your
tachometer to troubleshoot.