Tech question

[cheese9988]

I don't know if anybody here would know this or not. The speed sensor going to the ecu, does the ecu use this just as a reference so it knows when to cut the fuel off (govenor), or does it serve another purpose? ie to know vehicle speed for some other purpose.

 

[lsvteccrx]

it also tells your vtec to only work when the car is moving(if you have vtec) and i think thats it

 

[cheese9988]

Cool, its a zc so that helps me

 

[Jeef]

If it isn't hooked up right your speedo won't work.

 

[cheese9988]

Well the spedometer itself is cable driven....but the speed sensor, that just goes to the ecu to tell it how fast its going...right?

 

[Jeef]

My speedsensor connections were soaked in oil and my speedo didn't work. I cleaned them and my speedo worked. I am not sure why because it does have the cable drive.