wo wo wo... why does having a reed switch make it all over the place? My project is an 88 toyota pickup with a chevy motor and trans. The trans is a 4l60e with a relucter gear. Does this mean the trans speed sensor is hall effect? Because I had the dash out of the truck and I've just been using a toyota speedo as my signal generator. It has a 4 pulse per revolution reed switch built in for cruise control. I've just been spinning it with a drill and getting very inaccurate readings. So your saying some of the codes I have written could potentially work with the actual speed sensor even tho they are inaccurate with the reed switch test speedo? Thanks for the reply!!!
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