Question about 1999 Chevrolet Camaro
Have power to relay port but none back at the pump
You need to check the relay for both power on the control side and the switched side you should get a 2 second pulse from the ecm when the key is turned on to activate the relay (this is the control side of the relay) and once a rpm signal is received the relay is activated if no power on the control side check ecm fuses if no power on the switched side check fuel pump fuse if power is at fuses suspect open circuit in junction box also supply a gnd to relay to see if it will activate this will tell you witch side of the relay you are working on also look on top or side of the relay usually there is a diagram telling you what is what
Posted on Dec 06, 2012
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Take a test light end check that there is ower comeing though the wires, There could be a break in one of the wires going to it,
Posted on Dec 06, 2012
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Posted on Jan 02, 2017
SOURCE: 1999 chevrolet malibu
The fuel pump relay only energizes for 2 seconds when you turn the key on. It re-energizes once the pcm detects engine rpm. What you are seeing may be the normal operation of the system.
If the vehicle still won't start or the fuel pump dosen't run you will have to trace the wiring from the relay to the pump and check your grounds.
Posted on Aug 26, 2008
im not sure of the color wires that should be powered but have you checked the fuel pump relay under the hood? also check that you have a good ground at the pump dont check just the positive voltage check for negative (ground) also
Posted on Jan 28, 2009
The fuel pump relay is located Under hood, driver side, upper firewall, mounted in
The fuse is located under the instrument panel to the left of the steering column. The fuse block should be visible from underneath the steering column, near the pedal bracket. If the panel is not visible, check for a removable compartment door or trim panel which may be used on later models to hide the block.
Posted on Jun 03, 2009
SOURCE: 1996 chevy tahoe fuel system
i am having the same problem with my 96 pickup i am getting low voltage to my fuel pump i have traced the wires back to the front the purpel wire is the one with low voltage i replaced fuel pump also fuel relay and still have low voltage
Posted on Jun 22, 2009
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