Question about 1994 BMW 3 Series

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My BMW ran out of fuel and won't start after fuel has been added

Is there a fuel injector reset switch and how do I reset it? Or, do I have to replace the fuel injector?

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Have someone hit the fuel tank with a hammer while trying to start the engine. If it starts it's possible it picked up some trash. It may keep working if it starts but the pump will have damage and will need replacement. Although it will most likely start run for a few then die. If so just replace the fuel pump.

Posted on May 26, 2010

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Posted on Jan 02, 2017

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1989 f-250 inertia fuel shut-off switch switch location


This should be in the owner's manual. I found the below on autozone.com, their repair help location:
An inertia switch is used as a safety device in the fuel system. The inertia switch is located in the cab, generally under the dashboard on the right side. It is designed to open the fuel pump power circuit in the event of a collision. The switch is reset by pushing each of 2 buttons on the switch simultaneously (some models use switches with only one reset button). The inertia switch should not be reset until the fuel system has been inspected for damage or leaks.
When the ignition switch is ON , it turns the EEC power relay ON . The EEC power relay provides power to the powertrain control module (PCM) and the control side of the fuel pump relay. Power for the fuel pump(s) is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse, current flows through the fuel pump relay and inertia switch to the fuel pump(s). The fuel pump relay is controlled by the PCM.
When the ignition switch is turned ON , the fuel pump(s) will operate. If the ignition switch is not turned to the START position the PCM will shut the fuel pump(s) OFF after 1 second. The PCM will operate the fuel pump(s) operate the fuel pump(s) when the ignition switch is turn to START position to provide fuel while cranking.
After the engine starts, the PCM will continue to operate the fuel pump(s) unless the engine stops, drops below 120 rpm or the inertia switch is tripped.

Dec 28, 2013 | 1989 Ford F 250

2 Answers

I have replaced the fuel pump on my 1994 pontiac grand prix with the 3.1 litre v6. But it does not seem to be sending the fuel to the motor? In the instructions it says something about the oil pressure...


Are you sure that the fuel pump is properly installed? Have you tested the fuel pump circuits to see if they are working properly? Did you also replace your fuel filter? (It could be totally clogged up) Have you checked to see if there is any fuel pressure at the fuel rail or are you just assuming that the pump is not delivering fuel to the injectors? Have you checked your fuel injector circuits for power and for injector pulse from the EngineControl Module? Have you scanned your Engine Control module to see if you possibly have a Crank Sensor or Cam Sensor problem?

The oil pressure switch only keeps the fuel pump running once the engine starts. The fuel pump should run for 2-3 seconds when you turn the ignition switch to the "Run" position to prime the injectors. The oil pressure switch is the problem only if the engine will not continue to run on its own after it starts up.

Jan 24, 2011 | 1994 Pontiac Grand Prix

1 Answer

Not getting fuel to the engine, replaced fuel fuel. What are possible causes


Does the fuel pump run? If not it could be bad or the inertia switch might need resetting. If the pump does run it may be worn out and not supply enough pressure to trigger the fuel injectors.

Jul 16, 2010 | 1993 Ford Taurus

2 Answers

1987 chevy engine problem


you have to reset base idle see manual at library for procedure

Jul 19, 2009 | 1987 Chevrolet S-10 Pickup

1 Answer

Where is my fuel injector button


are you talking about the fuel inertia switch that you can reset..it is on the left side of the trunk compartment or behind the passenger side kick panelright by the feet by the door....just google fuel inertia switch and it should be a listing for it

Jul 11, 2009 | 1998 Ford Mustang

1 Answer

Water in gas tank and fuel lines on a Chevy 1998 S-10......wont throttle up at all, will run at idle.....when throttle up it chikes itself out like it flooded...but will idle as low as 400rpm..have changed...


THERE IS NO SUCH THING AS A RESET SWITCH ON THE FUEL PUMP. IF YOU HAVE WATER IN THE FUEL SYSTEM THE ONLY THING YOU CAN DO IS REMOVE IT, PHYSICALLY. DROP THE TANK, CHANGE THE FUEL FILTER, REMOVE THE THROTTLE BODY, AND GET RID OF THE WATER. AND DON'T FORGET TO BLOW IT OUT OF THE FUEL LINES.

WATER MOLECULES ARE BIGGER THAN FUEL MOLECULES AND WILL NOT GO THROUGH THE FUEL INJECTOR NOZZLES. YOU MAY EVEN HAVE TO REPLACE THE FUEL INJECTORS IF THE WATER DID DAMAGE THEM.

Jul 10, 2009 | 1998 Chevrolet S-10 Pickup

1 Answer

Gas goes to carb. but not to injectors 1995 murcury Tracer


Replace the fuel pump relay switch under the drivers seat. And replace the fuel pump shut emergency fuel pump shut off switch. Should be located in rear of car in trunk area.

Mar 20, 2009 | 1995 Mercury Tracer

1 Answer

Car will not start without spraying fuel into intake cant tell if fuel pump is running is there a reset switch and where is it located its a 1997 eclipse 2.0 non turbo


there is no such reset switch located in the car. First turn your key on and listen for the fuel pump to pressurize the lines. Then check to see if the fuel is leaking from the  filter. If it is you may have got the connection wrong. If thats the case your engine is not getting the proper fuel pressure to run. Hence its sucking air. If that does not work you might have a bad fuel pressure regulator sensor that is bad. Its located by the TBI. Reference a Haynes manual for replacement.
also if you did not fill the new filter with fuel then you have air in you system and engine will not run. so try taking it off and filling it with fuel and then replace it.
--------------------------------------
turning ignition on removes air from fuel lines and primes the fuel system. filling fuel filter with fuel is irrelevent, as lines need to be clear of fuel upon installation. leave ignition on after installation for roughly 30 seconds-one minute. this will prime the fuel lines and remove air and most water from the system. if problem continues, fuel injectors. this is a common problem in 90-92 camaros. if cannot start car, you'll need to replace every injector, as it's not cost-effective to diagnose every injector. roughly 300 dollars in quality parts, roughly 4 man hours of labor. if rough start that requires push on accelerator (try this), run the car with fuel injector cleaner. this should salvage you injectors. if this helps proformance, starting, then for the next 3-4 full tanks of gas, add stp injection cleaner for every tank of gas. be careful, as this does not restore your injectors, but it helps clear away deposits which are common in multi port injectors. 

Feb 09, 2009 | 1997 Mitsubishi Eclipse

2 Answers

Fuel sysytem


there is a reset switch in the trunk on the right side under the carpet or in the trunk on the back wall by the tail lights i had same problem found it and it was the fix i have the same car 89 5.0 trunk style hope this helps

Jan 11, 2009 | 1989 Ford Mustang

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