i have a 1991 camaro i just ls swapped. my speedo worked only intermittently prior to the swap so i wanted to change replace it anyways. my question is can i use a sensor from something newer that fits the newer plug. i can wire it up in a second if needed but would rather not. the car has a 700r4 with a 411 pcm. thanks

 

anyone? i just need to know if they will put out the same signal. when i had the computer tubed by lt1swap i told him the car had a 700r4. i asked him a while ago but hasnt gotten back to me yet.
i might just try the newer sensor this weekend. 2002 motor so thats what ill try

 

Most of the newer generation sensors use a reluctor and pickup system instead of a signal generator.

 

dang, wonder if there is anyway i can test out different years out the car with a multimeter. i can rewire the plug just dont want to get any sort of resistance. not sure how sensitive they are.

 

You'll need to stick with the sensor that matches the speedometer and ECM. GM used a variety of different senders for different applications. Some send a sine wave, some a square wave, not to mention different pulses per mile. You can use a converter like an SGI5 to convert the signal, or an aftermarket speedometer that would be compatible.

If you change the sender, there's a pretty good chance you'll have to change the drive "gear" on the output shaft of the trans. Thirdgens use plastic gears retained with a clip, that have to be matched to the tires and gear ratio, pretty much everything else uses a reluctor wheel that's pressed on the shaft.

 

ok well stock sensor it is. thank you.