Question about 1988 Chevrolet Camaro
Last week engine quit starting/running, started by replacing fuel pump relay under hood and (no luck). Replaced fuel pump in tank (it was not running), no luck on fuel pump either. It's not receiving power with key on or even tried by putting gas down intake and engine running for 1-2 minutes (still no power to pump). Have checked visually and by hand many wires and connections.....No Luck! The engine/intake is not receiving any fuel at all before or after this problem started.
Have heard about a oil/press/saftey switch or something like that associated with fuel pump that may be the problem. Have not found a fuse to fuel pump either if there is one? Any ideas?
If the oil pressure switch has two wires on it it may be one that shuts down the pump. I'm not positive but I think it completes a ground circuit, not the hot side though (but may run through a relay.) There should be a pump relay under the hood with a group of other relays. I don't have a wiring diagram for your car but you can get a basic diagram in most inexpensive manuals. They wont usually give you locations but at least you can get an idea of how the system works. There usually is a fuse. If the fuse block is not labeled, use a test light and probe the back of every fuse for power with the key on (takes about ten minutes and faster than trying to find info) change any that are blown. The most likely culprit is a relay, so after testing fuses look for it. (usually on drivers fender or on right side near firewall.) Worst case, trace the power lead all the way through the harness 'till you find where power begins.Testing is important here...I could give you much better info if I was there to do it for you. Most important is to stay "on track" till you find the place where power ends. Don't jump all over the place or you will end up doing an incomplete test.
Posted on Jun 17, 2009
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Posted on Jan 02, 2017
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