87 Corvette Fuel Pump Wiring Diagram

The status of the fuel pump ckt 120 is monitored by the electronic control module ecm at terminal b2 and is used to compensate fuel delivery based on system voltage. In the old days changing a fuel pump on 1953 1981 corvettes was a pain in the neck. The 12 volts goes thru the normally closed contacts of the fuel pump relay to the fuel pump fuse and then to the fuel pump motor.

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You had to fuss with the fuel pump pushrod.

87 corvette fuel pump wiring diagram. The factory installed fuel pump has been known to fail prematurely although gm designed a more reliable replacement fuel pump to resolve this issue. The task was sometimes messy. Fuel pump relay the fuel pump relay is located on the rh front of dash right of blower motor. In this article we consider the fourth generation chevrolet corvette c4 produced from 1990 to 1996.

Help diagnosing 87 tbi fuel pump problem. The front fiberglass leaf springs are known to crack as the direct result of normal deterioration. Here you will find fuse box diagrams of chevrolet corvette 1993 1994 1995 and 1996 get information about the location of the fuse panels inside the car and learn about the assignment of each fuse fuse layout and relay. The test light should come on for just two seconds each time the key is.

Low coolant light regularly fails on the 1987 corvette. The fuel pump should turn on and stay running. It was hard to reach. Code 54 fuel pump circuit low voltage circuit description.

The pink wire should be the fuel pump wire the tan white wire is for the sending unit ground the test light to a good clean section of the frame grind it shiney to be sure you have a good ground so you get an accurate test. 1984 1996 c4 corvette fuel sending unit installation. Because the pump was low in the system you had to seal off the fuel lines. If you want to test the fuel pump manually you can apply 12 volts direct to pin g on the diagnostic connector above the drivers right kinee.

This signal is also used to store a trouble code if the fuel pump. Take a moment to drop by the store and shop our products.