Tachometer RPM help

[RyanR79]

I just bought a autoguage tach and i cant capture a rpm signal with the green wire i tried the pin number 89 and 58. I still cant find the signal it just goes really slow and only to 3k on the tach. Any help will work thank you.

 

[agentorange313]

http://www.dsmtuners.com/forums/bolt-tech/240695-help-finding-2g-rpm-signal-ecu.html

 

[RyanR79]

ive tried both 58 and 89 pin

 

[agentorange313]

Thanks guys for all the help its much appreciated. However I found another place to tap into that is easily accessable and out in the open. This is also where Autometer reccomends to tap into for 2g dsms. So for any one who has asked this question (I know there is a lot of you) here it is.....

To the left of the coil pack there is an 8-pin connector that sticks straight up. I beleive this is the connector for the power transistor. The solid white wire is what sends the signal to the ECU (at least on a 98 eclipse). I tapped into this and it worked very well. And for those who havn't ran wires into the engine bay before, you can poke a hole through the steering columb boot and run the wire right into the engine bay with no problem.

read the thread

If you are getting a weak signal, I would look into resistance somewhere maybe. Take a multimeter and test for resistance. Maybe it could also the power transistor giving a poor signal.