12-03-2017, 01:00 PM
Dave
If you will provide resistances of the EOT at a couple sensor temperatures...
Then if someone with a FSM will post the acceptable ranges, we can determine if it is an EOT sensor issue.
Temperature sensors have various ranges, but all I have seen have max resistance cold and minimum resistance hot.
On a 5 vdc circuit, it will output 4 point something vdc cold and point something vdc hot. If the unit is faulty and/or a poor connection (causing voltage drop), a lower than scale read will fool the ECU into thinking it is too hot and the ecu may take counter measures.
Also, someone with a FSM, is there a trouble code for EOT out of range hi or out of range low?
If you will provide resistances of the EOT at a couple sensor temperatures...
Then if someone with a FSM will post the acceptable ranges, we can determine if it is an EOT sensor issue.
Temperature sensors have various ranges, but all I have seen have max resistance cold and minimum resistance hot.
On a 5 vdc circuit, it will output 4 point something vdc cold and point something vdc hot. If the unit is faulty and/or a poor connection (causing voltage drop), a lower than scale read will fool the ECU into thinking it is too hot and the ecu may take counter measures.
Also, someone with a FSM, is there a trouble code for EOT out of range hi or out of range low?