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I have a 2001 Mazda protege. Has new fuel pump and pressure regulator, I have cleaned fuel tank , lines, rail, and injectors. Relays and fuses are good. I took breather off and sprayed fuel into throttle body and it run as long as you feed it fuel. I'm not getting fuel to injectors. And no pressure build up. What do I do?

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Sounds like an electrical problem .pump isnt coming on .turn on key listen for fuel pump to come on for 10 seconds then shut off on its own. If you dont hear the pump then its probley fuel relay . next check wires are plugged into fuel pump. lots of cleaning ?? is the fuel rail screen plugged ???? disconnect before rail if the pump comes on next. turn on key check for fuel pumping out line .

Posted on Nov 21, 2013

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Posted on Jan 02, 2017

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SOURCE: 2001 Mazda protege dx will run with fuel straight

Fuel Pump!!! Have you replaced the fuel pump and filter?

Posted on Nov 13, 2013

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Daughter's 1996 Mazda Protege won't start. Starts with starting fluid. Fuel filter and pump replaced. Fuel to fuel rail. NOID light shows injectors getting signal. Spark at plugs, new plugs. Ideas?


Well there's a few things causing fuel problems----roll over switch(no pump function)---pressure sensor and or pressure regulator sending info to ECM(no pump function)---bypass regulator(that sends excess fuel back to tank) maybe wide open--gas just going in a circle not building up pressure---since it runs on starting fluid it's defiantly fuel supply issue

Sep 18, 2017 | Mazda Cars & Trucks

2 Answers

No Fuel Pressure


More likely the pump is not putting gas up to the engine's fuel rail.
With key on, not start, the pump should turn on for 2 seconds to put pressure in the line and fuel rail. Do you hear the buzz or hum from the tank with key on?
Did you put a fuel pressure gauge on the fuel rail's test port (shraeder valve), and find no pressure with key on? If so, you will need to check into the pump operation (assuming the fuel filter is not clogged). A quick test is to pull off the gas tank electrical connector, find the fuel pump wire in the connector, and use a test light grounded to a metal frame or a voltmeter. Check for power on the fuel pump wire, while the engine is being cranked over. If power then, your new pump is not working. It could be the ground for the pump, so you need to check that. If no power to pump, engine cranking, then you will have to find the fuel pump relay under the hood, and check the wiring to it. There is also a fuel pump fuse-it may be under hood or in the instrument fuse panel-need to find and check it.
If the pump is working and the fuel filter is clean, you should have gas in the fuel rail (which supplies the injectors with fuel under pressure). I have not heard of a pressure regulator problem that could cause no pressure, but then...
Post back what you find, or with comments. Hope this has helped a little.

Apr 12, 2014 | 2001 Saturn L-Series

1 Answer

What pressures up the fuel tank on a Mazda protege 1.6 liter 2001 model. I replaced fuel pump,pressure regulater,cleaned injectors and tank. Checked relays and fuses too. All that good. Why won't it crank...


have you checked the safety cut out switch ,inch square red rubber topped switch thingy ,when you find it push the rubber top down and if it clicks then it will start

Nov 16, 2013 | Cars & Trucks

2 Answers

2001 Mazda protege 1.6 liter having problem with fuel not getting to injectors and not pressuring up. Have replaced fuel pump and pressure regulator also cleaned injector and and dropped gas tank and...


did you change the Fuel pump? Most vehicles have the pump mounted in the top of the gas tank. you probably took it out to clean the tank. Sounds like that would be the first thing to check. I would also recommend changing the fuel filter at that time which should be on the drivers side frame rail under the car. Hope this helps!

Nov 16, 2013 | Cars & Trucks

1 Answer

Cold start problem mazda 2001


Could be the fuel pump relay, or a faulty pump, or pressure regulator.
The fuel system is supposed to hold pressure after you turn the engine off. A faulty pump or pressure regulator could allow fuel to drain back into the tank overnight. You would need to crank the engine for several seconds to build pressure back up.
The relay could be faulty and not giving the fuel pump power until the oil pressure comes up.

Dec 08, 2012 | 2001 Mazda Protege

1 Answer

How do I check the fuel pressure on a 2000 model mazda millenia with a 2.3 engine in it


Hi.

You connect a fuel pressure gauge like this to the pressure rail. Pressure in this car must be between 35 and 45 psi. If pressure is too low look for kinked fuel lines and eventually replace the pump. If the pressure drops down more than 10 psi in five minutes or if the pressure is considerably higher than that replace the fuel pressure regulator. Below the parts that may need testing:

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1. Fuel tank
2. Shut-off valve
3. Non-return valve
4. Fuel pump
5. Fuel pump (Transfer)
6. Fuel filter (High-pressure)
7. Injector
8. Pressure regulator
9. PRC solenoid valve
10. Fuel pump relay
11. Fuel pump resistor and relay (KJ model)

Aug 04, 2011 | 2000 Mazda Millenia

2 Answers

The fuel pump is not pumping the fuel.


Is the fuel pump actually coming on??? If it isn't, I would start by checking for a fuel pump relay.  This is usually located up in the engine compartment in a black box on the drivers side.  Relays are small black boxes approx 1"x1".  These have a tendency to go out just like fuses.  Also double check your fuses.  If you suspect a that a relay is bad, you can interchange them with other relays that look the exact same to see if they really are the problems.  These relays are very quick and easy to change and are very cheap.  They usually run no more than $10-15.
Any further questions, feel free to ask.

Feb 03, 2009 | 1995 Chevrolet Lumina Apv

1 Answer

Idle 2001 mazda protege ES 2l


relpace the fuel rail pressure regulator

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