Where is the fuel pump relay located on a 86 mazda 323

try also posting the question for a Ford Laser/Meteor KA/KB, which this car is also sold badged as in some markets.

Fuel pump relay is bad

It is located inside the fuel tank.

It may be the circuit relay #21 in the battery junction box. See diagram below. Let me know if you have more questions.

There are fuses for the fuel pump and should be located under the hood.You should not run the pump out of the fuel tank the fuel keeps the pump cool and it only takes about 15 seconds to destroy a new pump when running it out of the tank.Chances are you might have ruined the pump by running it out of the tank.

What you can do is disconnect the fuel filter and have an assistant watch under the vehicle while you turn the ignition switch (but with out actually turning the engine on. If the Fuel pump is an electrical fuel pump it will spit out fuel for about 3 to 5 seconds.
If nothing happens then a more extensive method to checking the fuel pump


Ok if you could find the fuel pump relay.
It will have either 4 pins or 5pins
This is a trick to activate the fuel pump with out the engine actually running and for longer that 3-5 seconds.
the 4 pins are numbers 85 86 30 and 87 (87a)
If you can remove the relay and memorize where the pins go. Then acquire a bobby pin or paper clip and cross the terminals 30 and 87 (87a) and if the fuel pump activates then it functions but remember to have the key in the ignition with it to the run postion but the engine off. If this works then the relay could be bad, Test Terminals 30 and 85 for resistance.

Reply if you have questions

fuel pump located inside petrol tank,
you have to remove the fuel tank, only 4 bolts, and a few pipes.
befor doing so, check fuel pump relay located in the middle of dashboard on the floor(horse shoe type plastic cover)

sounds like you have a fuel pump issue. first check the fuel pump relay. it's in the junction box under the hood. replace the fuel pump relay with the a/c clutch relay or heater relay and try starting the vehicle if the vehicle starts it was the relay if it doesn't check to see if there is power going to the fuel pump if there is your fuel pump needs replacing if there isn't then check the wire harness for a break in the wire. please rate