factory tachometer

hey i was wondering how come my tach dosnt werk anymore? i swapped my auto trans and put in a 5speed everyhing werks but my tach now. lol isnt it supposed to go to the coil? or does it run to the trans somehow? or is it an ecu thing when i swapped over? is there a way to fix it?

did u swap out the computer?

My aftermarket tach ($30, installed last week) gets its feed directly from the coil negative side, a yellow wire on my '88 B2200 (carbed, Weber).

no clue

I doubt any tachometer works from the transmission; if so, one wouldn't have any tach reading at all if the clutch pedal was pushed down, isolating the transmission from the engine (I can push down the clutch pedal and roar my tachometer).

Most likely on most vehicles the tach signal is fed from the coil, a "modern" computer, or an engine position sensor.

hayanxpocho69 - OK, yours was originally auto transmission, is yours fuel-injected or carbed? Methinks maybe you might have knocked off a wire when you installed the pedal assembly for your "new" manual transmission.

the tach has nothing to do with the computer, but i also had a similar problem, so i just got an aftermarket tach and it works fine now, and its the yellow wire with the blue stripe on the coil

- side on the coil

its carbed with a weber 32/36, my friend did the pedal part.s it the same color wire goingall thway from the coil to the dash?