Join Date: Aug 2002
Location: Face Down in Cabo, doing the Cabo Wabo...
Acceptable voltage drop off?
Ran some voltage drop off tests today on my 86 GT.
From the starter relay to my fuel pump relay, had voltage drop off of appx 230ma. At the relay itself, originally had a 35ma drop, but after cleaning contacts its now down to 15.
After the fuel pump relay, there is another 200ma drop off from the fuel pump relay to the back fuel pump harness.
So, in total, 450milliamps of voltage drop off.
Also found two spots in the fuel relay wiring needing addressing. First right at the starter relay, dried and cracked wiring (but did'nt account for much lost current and also at the connection inside the drivers kick panel, some corossion and also a worn wire, where there was wiring being exposed.
I am suspecting one of these may be the cause of my fuel pump cutting out when the car gets warm, does anyone else agree?