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Fuel injector relay - Tacoma Toyota Cars & Trucks

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Posted on May 11, 2013

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2 Answers

Fuel injectors not spraying


Bad fuel pump or relay to fuel pump or blown fuse to Main Relay or bad relay, could cause no spray from injectors.
Hope this helps.

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Where is the fuel pump and fuel injector relays located on a 89chevyBlazer


Fuel pump is in the fuel tank and the fuel pump relay is under hood near firewall.The fuel injectors DO NOT have relays. The PCM controls the fuel injectors.

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Car is turning over but not getting fuel ideas anyone thanks


There is not much information for a good answer.
  1. Fuel filter clogged
  2. fuel pump not working [fuse,bad pump,broken wire etc]
  3. computer not telling the pump or injectors to work [should set a code]
  4. dirty injectors

Feb 09, 2015 | Cars & Trucks

1 Answer

1999 lincon town car no power to fuel injector


Sometimes a crankshaft sensor does not send the signal to fire either the spark or the fuel injectors. If the fuel pump relay is not getting power, the inertia sensor will not have power either. The inertia reset is just magnetic and does not depend on having power to reset.

You can check for current at the Inertia sensor and at the fuel pump relay. You can also have fuel pressure at the test port without the injectors working, which is the easiest test of all,

You need the sequential firing pulse for the injectors. Have you checked the EEC Relay?

Apr 20, 2014 | 1999 Lincoln Town Car

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Fuel injectors activated by fuel pump relay? 92 BMW 525!


The injectors have constant voltage to them with key on. It is a fused circuit. The computer internally grounds the injector ground wire to cause injector circuit on- to pulse the injector, and fuel is then sprayed out. It is a separate circuit from the pump circuit.

Jan 06, 2014 | 1992 BMW 5 Series

1 Answer

1997 GMC Sierra, I keep blowing the ECM 1 fuse, I replaced Fuel Pump relay and Fuel Filter. Does the ECM 1 Fuse Pump the Fuel Pump, also disconnected the Fiter turned on the key and no fuel.


ecm1 is injectors not fuel pump ecm-b is fuel pump its more likely to be a faulty relay for the injectors, it would be a similiar design to this
12900_oil_sending_unit_and_fuel_pump_circuit_80-yoo05im5qhid2i2poe1uh03c-5-0.gif this is for the fuel system, relay for the injector is nearly the same.

Nov 03, 2012 | 1995 GMC Sierra C1500

1 Answer

Injector not working why put new injector new computer new fuel pump does it have injector relay 1987 celebrity


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.

Aug 26, 2011 | 1987 Chevrolet Celebrity

1 Answer

Where is the fuel injector relay located


There is no Fuel Injector relay? there is a Fuel PUMP relay. Its located behind the glove box. second relay

May 12, 2010 | 1995 Chevrolet Blazer

1 Answer

No power to fuel injectors


Determin if the injector operating:
  1. disconnect the injector electrical connector and measure the resistance of each injector with an ohmmeter. Compare the measurement with the resistance value Specifications are 11 to 18 ohms.
  2. Replace any injector whose resistance value does not fall within the specifications.
If the injector was not operating but the resistance reading was within specifications, the PCM Powertrain Control Module (PCM) or the circuit to the injector may be faulty.

Check the ignition fuse located in the engine compartment fuse center. Also. check the fuel pump relay.
Note: The fuel pump relay is located behind the radio in the center of the instrument panel.

If the relays are good and the fuel pump does not operate. check the fuel pump circuit. If the wiring and the connectors are
good, replace the fuel pump.

Nov 19, 2009 | 1999 Ford F250 Regular Cab

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