Guys I need some help here trying to figure out what is going on with the VREF voltage to my TPS sensor it basically is not getting the full 5volts it needs for proper return voltage to the computer ..
First off if I test between the 5 volt source (bottom Brown wire) and the Ground wire (top grey wire) I only get 1.73 volts not 5 volts like I should be getting.
So of course my voltages between the Test wire and the Ground are way below (note the picture below) 0.29v closed throttle and 1.08v wide open throttle which should be upwards of 5 volts .. but impossible to achieve when you only have a 1.73 volt REF voltage.
What can I check on the computer side to see if the computer is actually getting the voltage/ground that it requires to distribute it to other sensors .. maybe test the voltage on the IAC connector for correct voltage? I am unsure what to do with this so any help would greatly be appreciated on tracing down why I have such an under-voltage at my TPS sensor's VREF.
(First picture closed throttle reading between Ground & Test Wire and the other WOT)
** Test's all done with KEY ON ENGINE OFF! (KOEO)
First off if I test between the 5 volt source (bottom Brown wire) and the Ground wire (top grey wire) I only get 1.73 volts not 5 volts like I should be getting.
So of course my voltages between the Test wire and the Ground are way below (note the picture below) 0.29v closed throttle and 1.08v wide open throttle which should be upwards of 5 volts .. but impossible to achieve when you only have a 1.73 volt REF voltage.
What can I check on the computer side to see if the computer is actually getting the voltage/ground that it requires to distribute it to other sensors .. maybe test the voltage on the IAC connector for correct voltage? I am unsure what to do with this so any help would greatly be appreciated on tracing down why I have such an under-voltage at my TPS sensor's VREF.
(First picture closed throttle reading between Ground & Test Wire and the other WOT)
** Test's all done with KEY ON ENGINE OFF! (KOEO)