i have a Q.
according to this pinout...
https://www.cobaltss.net/resources/pcm/05cobalt20.htm
i would assume the pcm c2 connector pin6 is the 5volt TPS wire.
but i get 5V no matter of pedal position.
i also do not see a location for rpm or tach.
can some smarty=pantz enighten me pls?
thx in advance.

 

have you tried pin 7?

also, why not just connect to the TPS sensor off the TB?

 

Dead Nuts On... Great Write Up

 

i tried 6,. thinking i had to be right. i asked as i dont want to "try" again without knowing exactly. also, i didnt have a pinout for the TB. (and no room under the weenie blower).

 

well IIRC there is a TPS switch that goes from 5v to 1v and then vise versa for the second one

take a voltimeter to it...its not gonna hurt anything by trying anyway. if it doesn't work then it just wont spray, besides u could just hold the nozzle up and have someone step on the gas and that'll be your test.

took mine to the TB and didn't have a pinout just a voltmeter

 

i see. i just also didnt want to poke holes in the wires or such things. i just thought that the pinout showing the tps voltage would be right, ah well. i tried 2 next and it wasnt right. go figure, its the last possible combo. and where would a guy hook up a rpm wire.
ps, i just installed meth kit, and was splicing into the harness anyway so i thought id hook up a tps wire to make the next install easier. go figure

 

Still waiting for this to be stickied!!!!

 

nice write man

 

you may want to PM Zinner...it seems that the mods don't frequent this forum too often.

 

BUMP for this to be a sticky...took me too long to find and has some AWESOME info

 

nice!

 

Bump, Very useful information!