Question about 1994 Ford Ranger Supercab

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Not getting power to fuel pump or injectors - 1994 Ford Ranger Supercab

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  • 497 Answers

Check youre relay's. they may be malfunctioning

Posted on Aug 29, 2009

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  • 2 Answers

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Posted on Jan 02, 2017

  • 99 Answers

SOURCE: 200 sx not getting fuel to injectors

It could be a bad fuel pump or wiring to the fuel pump, but it could also be a clogged fuel filter. If the fuel is getting to the injectors but not into the engine, the injectors may be clogged and in need of replacement. There are repair manuals that can help you find and replace your fuel filter, which should be replaced at regular intervals (depending on your service schedule), and these manuals can be found at the library or auto parts store. The most common manuals I know of are Chilton and Haynes. Both are made for your exact vehicle and have the steps to fix any problem, down to a complete tear-down and re-build of your car (including injectors).

Posted on Mar 01, 2009

  • 83 Answers

SOURCE: i have no power to my fuel injectors on 88 saab 900 turbo

There should always be power at the injectors as long as the fuel pump is on. The fuel injection ECU provides a ground to the injectors to turn them on.
You most likely have a bad fuel injection ECU. This is a very common failure on 88,89 and 90 SAABs.

Posted on Mar 25, 2009

  • 4 Answers

SOURCE: no power to feul injectors

get a new injector

Posted on May 13, 2009

redbeard00
  • 957 Answers

SOURCE: no power tp the fuel pump, injectors not pulsing, no fuel.

Check out your oil sending unit, fuel pump and relay, check for power (might be a fuse), the ignition control module (which if you remove it, can be tested for free at AUTO-ZONE), any related wiring, pick-up coil (inside the distributor), and possibly the ignition switch. If I can be any more help just as away.

Posted on Jun 06, 2009

  • 7 Answers

SOURCE: no power to fuel injectors or fuel pump

sometimes the relays can be found underneath the carpets or plastic panels under the dash. have you checked the fuses?

Posted on Sep 21, 2009

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Is the fuel pump relay sending power to the pump, do you have normal fuel pressure at the injectors, and are the injectors getting power and pulse from the computer ?

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You have disconnected the filter and know that the pump is pumping fuel forward ?
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Check fuel pressure. Have you replaced the fuel filter on schedule? Verify that the fuel pump is getting power. Power goes through an in-line fuse, then the fuel pump relay or the oil pressure sensor. (The relay bypasses the oil pressure sensor while the engine starts, but fuel pump power goes through the sensor during normal run operation. If you lose oil pressure, the fuel pump is shut off to protect the engine.) On four-cylinder models, the fuse is in the fuse block (E PUMP 10)
The fuel injectors are connected to the ECM fuse on one side and straight to the engine computer on the other side. Check the connectors and wiring, especially at the injector.

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If it is similar to Quest, the fuel pump runs for 5 seconds when you turn the key to ON. Then, unless the engine is running, the pump shuts off. It runs when the key is in START position though. Can you hear the pump run for 5 seconds when you turn key to ON? Listen carefully for the hum of the pump in the tank.
Normally, the power relay powers up the PCM and it applies power to the fuel pump relay. Then you get power to the pump.
Also, look at owner manual for all fuses that apply to fuel pump system.

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1 Answer

No fuel from my injectors, my fuel pump is not engaging.


Fuel pump power comes from a relay which is usually under the hood but not always, it can also be behind one of the kick panels next to the drivers left foot or passengers right foot. Are you getting power to the injectors as injector power usually comes from a different relay or direct from the ignition switch. The injectors are grounded by the control module so they should have power all the time or when the ignition is turned on. Check out the relays and also check the wiring harness connectors both under the hood and through the firewall. Next, check for the various engine signals to the control unit. If a cranking or cam angle signal is missing, the control unit will disable the injectors and fuel pump.. buy or borrow a copy of the workshop manual (try the local library for this) as most have the procedures and test methods to check for issues..

Dec 07, 2009 | 1990 Chevrolet K1500

2 Answers

Not getting any fuel to the injectors


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Apr 29, 2009 | 1991 Dodge Dakota

1 Answer

I have no power to my fuel injectors on 88 saab 900 turbo


There should always be power at the injectors as long as the fuel pump is on. The fuel injection ECU provides a ground to the injectors to turn them on.
You most likely have a bad fuel injection ECU. This is a very common failure on 88,89 and 90 SAABs.

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