nismos14a

hi im new on this forum and i live in finland so sorry about my english.

i buy yesterday a miata na -92 1.6 and it's original and today it start f**k my brain.
the problen is when it's on idle about 850rpm tacho show 0rpm but if i push the gas it jump and start work... and when i loose the gas pedal tacho goes back to 0rpm. yesterday it works just fine. PLEASE HELP

here is link to video but it's not my but same problem

hi_im_sean

iTrader: (3)

Sounds like the igniter may be going bad. Ive killed one so that it wouldn't drive the tach, but still fired the coils. You can put a scope on its output to see what kind of signal the tach is getting. Its also possible the tach is just going bad, but not as likely.