Can’t find where my fuel pump relay is on car

My car worked all morning I stopped and tried to turn it on it didn't want to. It makes a clicking noise my fuel pump is supplying gas but it's not turning on I don't know where my fuel pump or fuel
Pump relays are located on my car but I need my car to start working again. Could it be a throttle problem or something. I tried everything I even bought a whole new relay in the main fuse box

My car has 83000 miles.
My car has a manual transmission.

Experienced mechanics share their insights in answering this question :
Hi there. This video is actually pretty good to show you how to self diagnose this type of problem that is common with TDI’s. I would recommend watching this video first, and if this doesn’t resolve your problem – I would recommend contacting a local mechanic to complete a car is hard to start inspection.

How to Identify and Fix Common car Problems ?

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The relay panel for the Mk4 Jetta is located up underneath the driver`s side dashboard. You`ll need to remove the lower dashboard panel to gain access. See our article on Lower Dashboard Panel Removal for more information.
The fuel pump relay is an electronic component that is found on virtually all vehicles equipped with an internal combustion engine. It is often found in the fuse box located in the engine bay and functions as the primary electronic switch that controls power to the fuel pump.
The fuel pump shut-off switch has a red reset button on top of it.
You`ll typically find the fuel pump located in the fuel tank. If your car has GDI, there will also be a high-pressure fuel pump located near the fuel rail in the engine compartment.
Fuel pump module is in the gas tank. The term is for the pump/sender and hanger for the pump. It sounds confusing to call it a module as if it is a computer component but it is simply the assembly you remove from the fuel tank when replacing the fuel pump. 10 people think this is helpful.
The ignition relay is one of the most important electronic relays found on modern vehicles. It is usually located in the fuse and relay panel beneath the bonnet, and is responsible for providing power to the vehicle`s ignition system, and some of the fuel system`s components.
Locate and correct any short circuits that may have caused the blown fuse, then replace the fuse. The fuse/relay center is located below and to the left of the steering wheel.
The fuel pump relay plays an integral role in getting fuel to your engine for combustion. Powered by the ignition and/or powertrain control module (PCM), the fuel pump relay`s main function is to provide the fuel pump with enough power. When the fuel pump relay isn`t working, then the fuel pump cannot either.
You can use one of the ME ECUs Slow/Relay Low Side (LS) drivers to drive the fuel pump. Note this must be done via an automotive four-pin relay as fuel pumps can draw 20+ Amps. If you do not have enough Relay Low Sides, then you can of course use a PWM Low Side instead.
When the key is turned on, the powertrain control module (PCM) closes the fuel pump relay, which activates the fuel pump for about three seconds to pressurize the fuel injectors.
Press and hold the “Trip/Odo” button again until the Odometer says “1.” This means that the reset process has begun. Keep holding the button down while the fuel gauge resets. Release the “Trip/Odo” button once the reset is complete.
The P0230 code indicates an issue with the fuel pump. This generic code indicates that there`s an issue with the circuit between the fuel pump and the powertrain control module (PCM).
The fuel tank pressure sensor is part of the fuel pump assembly and is mounted on top of the tank or inside the tank. It`s part of the evaporative emissions system (commonly referred to as “EVAP”) and reads pressure in the fuel system to detect evaporative leaks, such as a loose or faulty gas cap.
The throttle position sensor (TPS) is usually connected to the throttle plate shaft in the throttle body. The TPS reads the angle of the throttle valve and transmits an electrical signal to the PCM. The PCM uses this real-time signal to help calculate or modify fuel injector pulse width, controlling air/fuel mixture.
It incorporates a 5 volt electronic sensor input to vary the speed of the fuel pump with the sensor input. This 5 volt input is typically tapped from a MAP Sensor used in contemporary electronic engine control computers.
On modern high-speed diesel engines, a fuel transfer pump is normally used. This pump, driven by the engine, supplies fuel automatically to the diesel injection system. The pump often has a hand primer lever for bleeding air from the system.
Many cars possess two diesel pumps. A relatively inexpensive electrical low-pressure pump is sited within the fuel tank. This is powered electrically with a dedicated fuel pump relay. It delivers fuel to the high pressure fuel pump, driven mechanically by the engine, which is this article`s focus.
Note: The fuel pump shut off switch reset button is usually located either under the dash in the driver compartment or under the driver or passenger seat. Just move the seat forward and pull back on the carpet or popping off the cover under the seat to access the switch.
Relays can look very similar from the outside so they normally have the circuit schematic, voltage rating, current rating and terminal numbers marked on the body to identify them. This shows the basic internal circuits (including any diodes, resistors etc.) and terminal layout to assist wiring.
Electrical issues: Electrical faults are also significant contributors to fuel pump failures. The most common electrical issues are rusted connectors, loose connectors, or melted wiring and connectors.
A relay is a single device that has an electromagnet and a switch, or it can be the solid-state type. A relay module, on the other hand, is a board that has one or multiple relays on it and several other components to provide isolation and protection.
In the fuse box on a modern car, you`ll find a whole bunch of multi-colored electrical fuses and larger, plastic boxes called relays. Fuses are included on all your car`s various electrical circuits to protect components from surges of electricity.
– the relay panel is located under the dashboard, on the driver`s side, behind the dash storage.
The electric fuel pump on a vehicle with a spark ignition engine is controlled by a fuel pump relay. The engine control module (ECM) activates the relay when operating conditions are correct. For safety purposes, the fuel pump relay is only activated when an engine speed signal is received by the ECM.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Just replaced my fuel pump but its not getting any power tested fuel pump relay and fuel fuse both good tested the wires all good.
ANSWER : You need to look at the theft light on dash to make sure it comes on and goes off when you turn the key to the on position. If light comes on and stays on then your theft system is causing the fuel pump to not be engaged. I recommend you check the theft system and then scan the computer for theft system codes. You may need to reprogram the keys to work or you have an bad sensor for the ignition key in the steering column.

I put a fuel pump in and a fuel pump relay. The relay works but there is no power to the fuel pump.
ANSWER : Hi there. There could be an issue with the wiring to the fuel pump between the fuel pump relay and the fuel pump. Remove the wiring to the fuel pump and check the resistance from the wiring from the relay to the fuel pump. There should be no more than 1 ohm of resistance. If there is more resistance than 1 ohm, then there is a break or corrosion in the wiring. Also, check the ground circuit and make sure that the fuel pump is getting a proper ground. If you need further assistance with your fuel pump not operating, then seek out a professional, such as one from Your Mechanic, to help you.

Why does my car only run if we bypass the fuel pump relay on my 1998 Acura RL
ANSWER : Hi there. If the car will run with the relay bypassed then the fuel pump is fine. If the relay is fine also then the control for the circuit has a failure. Most of the time this is caused by an issue with the ignition switch or the vehicles main relay. Typically it is the ignition switch though. I would usually start by doing a voltage drop test of the ignition switch followed by testing the main relay. This will help to identify the problem. If you need to have this fuel system problem repaired, consider YourMechanic, as a certified mechanic can come to you to [diagnose why the car will not start]

Car is not getting fuel. I changed fuel pump and checked the fuel pump relay. It was in good condition. What else could it be?
ANSWER : This may likely be related to the fuel pressure regulator. This is a unit that helps to maintain the fuel pressure in the system. When this is not working, this may cause an erratic fluctuation in the fuel pressure or in some cases, no fuel pressure at all. If you’d like assistance with this repair, I would recommend having an expert from YourMechanic come to your location to diagnose the issue firsthand and service your fuel pressure regulator as necessary.

Can’t find where my fuel pump relay is on car
ANSWER : Hi there. This video is actually pretty good to show you how to self diagnose this type of problem that is common with TDI’s. I would recommend watching this video first, and if this doesn’t resolve your problem – I would recommend contacting a local mechanic to complete a car is hard to start inspection.

Car will crank but no start… Fuel pump not coming on. New pump, relay, etc. Will start when hot wire runs from pump wires to bat
ANSWER : There are a couple of approaches to take here – either start from the battery and work "towards" the fuel pump, fuse box, ignition switch, fuel pump relay, and wiring connections in between. Or, as you have done, start at the pump with 12v, and move backwards towards the battery. This will require a GM service manual, or wiring diagram at least, with connection locations as well.

I would recommend having a certified technician from YourMechanic diagnose this starting issue, get an accurate assessment of damage and cost estimate for repairs. can dispatch a mobile, professional mechanic to your location for this repair.

Replaced fuel pump. Car won’t start. 2002 Infinity I35
ANSWER : Hi there – the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel pump to run very long before the engine will start. Having replaced the fuel pump and fuel filter, I would check fuel pressure while the car is running. This is to check the fuel pump relay for burned contacts that won’t support full electrical current to the pump, and for proper fuel pressure – a malfunctioning fuel pressure regulator could also restrict power and higher speeds if pressure is too low. I would recommend an inspection of the fuel system by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

Where in the car is the fuel pump relay located so I can replace it?
ANSWER : Hello, thanks for writing in to YourMechanic. The fuel pump relay is the orange relay located in the e-box. If you’re uncomfortable with this repair, you may want to consider having a professional from YourMechanic come to your location to diagnose and replace your fuel pump relay. Best of luck.