tach wire qustion

hello

i have one question  if  i change the spark plugs  do i have to reprogram  the tach  again becaus what happend  the remot starter was working fine  after i replaced new spark plugs  the car starts  and shuts off  by itself  but the  door luck  unluck  trunk  works fine  any helpe  r\s  autostart

thanx

What kind of car is it ? From the sounds of it, it's not the tach rather a bypass module. If you need to reprogram the tach signal on an AutoStart unit, you have to reset the unit & then reprogram the remote control and relearn the tach wire.

ur right  its not  the  hood pin  and its not  the bypass becaus 95 dosnt have security i found the problem  that was becaus i replaced  new spark plugs.

because the  tach wire coming from coil concter  wher all spark plugs meet

wat i did  i just flushed  the hoot pin and  do new programing  and the car  works gooood  so just to make sur that the spark plug was the problem

i unpluged all of them  and plug them  again  the same problem happend i mean  the car  cranks and stops and starter stays engaged. but the lock  unlock works good in both times.