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Anonymous Posted on Mar 03, 2011
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System shut down power to fuel pump. Checked pump it is working no power to pump from electrical supply line.

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Joined: Jan 24, 2010
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It's that infamous "chip" in the key that becomes a nightmare to many. The security light may or may not start flashing. Sometimes it stays on steady. Gradually the car begins not cranking anymore or if it cranks it will start and die in a second. They have been known to shut down cars while driving and create dangerous situations. Randomly it will do this more and more often until it won't start anymore. VATS, PASSkey and Passlock immobilizer systems are killing cars all over North America, they have a short lifespan and are certainly more effective against owners than thieves. Here is how you save your car

QUICK FIX TRICKS
1st trick, Try a spare key that is newer or used less. The pins wear down with use and so do the keys causing the security to fail.


2nd trick, (if not starting) turn the key forward 2 clicks till right before it would normally start, leave like that for 10 minutes. ( no less ) After 10 minutes, turn key back then forward and your car might start. I did this in my regal for more than a year. If its shutting down while running, I'm sorry I have no quick fix...

There are 3 parts in this system.
1.The chipkey (Black resister chip in key)
2.The lock cylinder (Pins that read the chip in the key)
3.The TDM (Theft Deterrant Module-Sometimes called the "computer" or "brain") This allows your car to start or continue running depending on your type of system.
If any of these parts fail or are not quite funtioning properly in the slightest way, your car will not start, start for a few seconds, or die while driving. There are partial "fixes" out there, you can bypass the key and the lock cylinder in the stearing column which means ripping apart your car for a temporary fix. If you are going to do the work yourself, i suggest pulling the whole "computer" (TDM) out completely.
NEVER WORRY AGAIN FIX: Bypass the whole VATS/Passlock/passkey I or passkey II system entirely. Literally take it out, and throw it away. I just did this in my Regal. Took about an hour. It took longer to find the "theft deterrant module" so i could remove it, than it did to actually wire in the "Bypass module" from Newrockies. They sell a unit for 200 bucks to totally bypass this system FOREVER. Life time money back guarantee. Finally did this in my car. Well worth the 200 if you've looked into getting this replaced at a dealer. It can cost anywhere from 600-1000 bucks. And beleive me they will sell you all 3 parts before they "FIX" your problem. Dont go to a dealer, do it yourself. You can study up and purchase it thru this link.
-----> http://newrockies.ca?ap_id=judd0081 ----- With this fix, you can take that whole Vats, passlock, passkey system out of your car all together. If you want more info on how this system works, click on that Newrockies link and scroll down to the last link on the bottom of the home page. "The VATS/PassKEY/Passlock Bypass Tutorial" This link explains exactly what is happening and why. Once you understand how this works, you're going to be pissed at GM but happy you found Newrockies.
It works for:
Any GM, Saturn, or Isuzu Vehicle with VATS or PASSKey or PASSLock security systems.
If your car has the chip in the key or in the lock cylinder, then you can save it with this Full Bypass.

It works for, but is not limited to these vehicles. These are just what are KNOWN to me at the moment. More vehicles will definitely end up being on this list:
Trucks
.
GMC/Chevy
1998-2006 S10/T10/Sonoma
/Blazer/Jimmy
1998-2007 Suburban/Avalanche
/Tahoe/Yukon
1998-2006 Sierra/Silverado
2002-2008 Trailblazer
2003-2006 SSR
1998-2006 C1500/C2500/C3500
1998-2006 K1500/K2500/K3500
2003-2007 Hummer H2
.
Isuzu
1998-2000 Hombre
2005-2006 I280/I350
2007-2008 I290/I370
.
Cars/Vans
.
Isuzu
2003-2007 Ascender
.
Pontiac
1994-2003 Grand Prix
1998-1999 Montana
2006 Torrent
1996-2005 Grand AM
1994-1998 Trans Sports
1988-1999 Bonneville
1988-2002 Firebird
1995-2005 Sunfire
1996-2002 Trans Am
.
Buick
2004-2007 Rainier
1994-1996 Century
1993-1996 Regal
1982-1999 LeSabre
1991-1996 Park Avenue / Ultra
1994-1996 Roadmaster
1991-1996 Roadmaster Estate Wagon
1982-1999 Riviera
1988-1991 Reatta
1996-1998 Skylark
1982-1990 Electra (all models)
.
Oldsmobile
1996-1998 Achieva
1999-2004 Alero
1994-2004 Aurora
1998-2004 Bravada
1991-1993 Delta 88
1994-1999 Eighty-Eight
1991-1996 Nighty-Eight
1998-2002 Intrigue
1990-1992 Toronado
1994-1997 Cutlass Supreme
1997-1999 Cutlass
1997-1999 LSS/Regency
1997-1999 Silhouette
1991-1996 Custom Cruiser
.
Chevrolet/GMC
1998-2005 Astro/Safari
1998-2008 Envoy
2005-2006 Equinox
1998-2007 Savana/Express
1995-2005 Monte Carlo
1997-1999 Venture
1995-2001 Lumina
1988-2002 Camaro
1995-2005 Cavalier
1982-1991 Corvette
1994-1996 Caprice/Caprice Wagon
1995-1996 Impala SS
2000-2005 Impala
1997-2005 Malibu Classic
1997-2003 Malibu
.
Cadillac
1986-1993 Allante
1982-1996 Fleetwood
1985-1996 Fleetwood Brougham
1992-1995 Seville
1992-1995 SLS/STS
1985-1995 Deville
1994-1995 Deville Concours
1988-1995 ElDorado
1994-1995 ElDorado Touring
1999-2007 Escalade
.
Saturn
2000 LS/LS1/LS2/LW1/LW2
2001-2002 L100/LW100
2001-2003 L200/LW200
2001-2005 L300/LW300
2004-2005 L-Series
2002-2008 VUE
1996-2002 SL/SL1/SL2
1996-2002 SC1/SC2
1996-2002 SW1/SW2
.

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How to install electric fuel pump on Hino 700 dump truck?
Installing an electric fuel pump on a Hino 700 dump truck requires some mechanical knowledge and skill. Here is a general guide on how to install an electric fuel pump:
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  2. Locate the existing fuel pump: The stock fuel pump may be mechanical or electric, depending on the truck's model. Locate the fuel pump and ensure that it is easily accessible.
  3. Disconnect the battery: Before starting any work, disconnect the truck's battery to prevent electrical shock or short-circuiting.
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  5. Install the electric fuel pump: Find a suitable location for the electric fuel pump that is close to the fuel tank and away from excessive heat. Mount the pump securely using the supplied mounting brackets.
  6. Connect the fuel lines: Use the appropriate-sized hose clamps to connect the fuel lines to the electric fuel pump. Ensure that the connections are tight and secure to prevent leaks.
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Jul 30, 2023 • Cars & Trucks
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What relay is to the fuel pump
The fuel pump relay is a small unit covered in a plastic case, which has several sprockets on one side that are clipped onto the ignition system. The fuel pump relay is what turns on the fuel pump when you start your car and powers it down when you shut off the ignition.

The engine control module (ECM) uses the fuel pump relay to control when the fuel pump is on. The fuel pump relay supplies electricity to power up and power down the fuel pump.

It's located in different places on different cars. It could be under the hood, on the firewall, on one of the fender covers or near the steering column, to name a few locations. As for a Nissan Terra (Nissan Terra ?????), it is often found in the fuse box located in the engine bay.

When you turn the key in the ignition forward to crank the car, the "start cycle" begins and fuel pump relay is engaged long enough to turn on the fuel pump. It shuts off again when the engine is running. Once the engine is running, the fuel pump relay shuts off, and the current for the fuel pump is supplied by the oil pressure sending unit. The other time the fuel pump relay is engaged is when you shut off the ignition. It engages long enough to shut off your fuel pump.
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Where is fuel shut off switch on a 2001 pt cruiser?
Doesn't have one . Do you know what a wiring diagram is ? How to use a DVOM - digital volt ohm meter to test fuel pump electrical circuit ? The fuel pump electrical supply on your vehicle is controlled by the PCM - engine computer through the use of a relay . Do you know what a relay is an how it works ?
Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size . Under system click on engine , then under subsystem click on fuel controls . Click the search button , then the blue link . Scroll down to the #8 diagram . Check the fuse's an the power an control at the relay .
VEHICLE RELAYS Testing from the relay base
VEHICLE RELAYS Operation Diagnosis
Fuel Pump Electrical Circuits Description and Operation


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Mar 25, 2018 • Cars & Trucks
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97 f350 5.8 disconnected fuel line from tanks to inline filter turn on key pump runs momentarily then shuts off only supplying small amount of fuel from either tanks
Generally speaking, its supposed to do that.
The fuel pump(s) is powered by a relay that turns on for 3 seconds when you turn the key on. If the engine does not start and produce oil pressure, thats all the power the pump gets. If you were in a wreck the pump would shut off when the engine dies even with the key on to prevent a fire.
You would need to jumper the relay to make the pump run beyond the 3 second time.
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Aug 03, 2012 • Cars & Trucks
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Car will turn over but won't start. Through the
No noise from fuel pump when you turn over the car .First thing get voltage at fuel pump relay checked, is there 12 volt to the relay.If no, then problem is again the relay.--------- To reconfirm the problem, try other test, that is remove the relay and by pass the relay terminals with a jumper wire .Then with 12 volt external battery give power to fuel pump connector and see, if the fuel pump starts, then its clear that fuel pump relay is faulty.----------- Also other problem can be fuel pump inertia switch.If the inertia switch is faulty then also fuel pump will not start.-------- The fuel pump relay on a 1995 Ford Explorer is in the power distribution
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The fuel pump inertia switch is in the right front passenger area
it is below the dash but above the carpet in the right hand corner.--------
Its a push button type inertia switch.
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Fuel Pump Activation
When ignition switch is turned to START position, PCM operates fuel pump relay to provide fuel for starting engine. PCM senses engine speed and shuts off fuel pump by opening ground circuit to fuel pump relay when engine stops or engine speed drops to less than 120 RPM. When ignition switch is in ON position, EEC power relay is energized (contacts closed). Power is provided to fuel pump relay and timer in PCM. Fuel pump receives power through fuel pump relay contacts.
Inertia Fuel Shutoff (IFS) Switch
All models use an electrical interrupt switch in fuel system. During a collision or vehicle rollover, electrical contacts within inertia switch open, shutting off fuel supply to electric fuel pump. Fuel supply is interrupted even when engine is running.
A reset button is located on switch assembly. If electrical circuit trips, vehicle will not restart until switch is reset. Fuel system should be inspected before resetting switch.
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Low fuel pressure on neon 2003,have change fuel pump,but pressure is low can start if tank is full
Hi.

Check the fuel filter and fuel pressure regulator. They are part of the same assembly and are located on top of the fuel pump. To replace the regulator # Disconnect fuel supply line at the Filter/Regulator nipple and releas locking spring tab (2 in diag.) on the regulator, then turn counterclockwise and pull out. To test regulator use a gauge like this in fuel lines:Pump Pressure Tester.
Pressure in 2003 should be 58psi (48 in 2001 engines). Pressure will drop of about ten psi when you start engine.

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Jun 07, 2011 • Chrysler Neon Cars & Trucks
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Hi and welcome to FixYa!
The fuel pump relay regulates the power given to the fuel pump. If the fuel pump relay is faulty there will be no power to the fuel pump and will result to fuel supply failure. These relays just like the others serves as regulators so that the battery will not fail during electrical loads.

Hope this helps and thank you for using FixYa! Have a good one!
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Feb 24, 2011 • 1988 Volkswagen GTI
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Section 10-01: Fuel Tank, Filters, Lines and Electric Fuel Pump 1995 Thunderbird, Cougar Workshop Manual
DESCRIPTION AND OPERATION Fuel Pump, Electric The electric fuel pump:
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  • Is located in an internal reservoir in the polyethylene fuel tank (9002) .
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  • The high-pressure fuel pump module on the 3.8L SFI and 4.6L-2V engines can supply 60 liters (15.9 gal) of fuel per hour at a working pressure of 269.0 kPa (39 psi).
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  • The fuel pump module has an internal check valve to maintain pressure in the system after the engine is shut down.
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Fuel sysytem
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