gtss
Member
The pulsing signal you are getting with the test light is normal, the way it is supposed to be, that is what the IVR intrument voltage regulator does
as someone else said, Ground the signal at the sending unit, it the guae goes to full then it is your sender, if the guage does not move then it is either the wiring from the sender to the guage or possibly the guage itself. NOTE it could be a fault right in the circuit at the back of the instrument cluster... ideally if you connect at variable resistor to the wire at the sender, you can check the entire sweep of the guage more acurately I don't recall the exact specs, but I THINK low resistance about 14 ohms should read full and high( about 75 ohms ) should read empty
gord
as someone else said, Ground the signal at the sending unit, it the guae goes to full then it is your sender, if the guage does not move then it is either the wiring from the sender to the guage or possibly the guage itself. NOTE it could be a fault right in the circuit at the back of the instrument cluster... ideally if you connect at variable resistor to the wire at the sender, you can check the entire sweep of the guage more acurately I don't recall the exact specs, but I THINK low resistance about 14 ohms should read full and high( about 75 ohms ) should read empty
gord
