Question about 1993 Jaguar XJ6

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No power to the fuel injectors. - 1993 Jaguar XJ6

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You might try the inertia switch in the trunk. It is there to cut off the fuel pump but may also depower the injectors.

Posted on Jun 18, 2009

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Posted on Jan 02, 2017

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96 Chevy Silverado 1500 5.7 liter V8 will not start good fuel pump fuel filter good fuel pressure no start. If you put gas or a catalyst into the intake it starts


no signal for the injectors
check cam/crank position sensors
check immobilizer operation
check ecm and harness connections

May 20, 2016 | Cars & Trucks

1 Answer

Turns over but wont start pumps fuel into lines but not engine will start if fuel is poured into moror but only long enough to burn fuel poured in


This sounds like fuel injection, is it? Or I think you would have said if it was a carburetor. But if fuel injection, it is the pump and the fuel filter's job to put fuel under pressure in the lines and up to the engine, or really to the injectors. If you have fuel pressure in the line, then you have fuel pressure to the injectors. (If not, check the fuel filter.) And then, it is the injector circuit's job to put the fuel into the cylinders.

Just first be sure the fuel pressure is correct. For throttle body injection, that resembles a carburetor somewhat-the injectors are in the throat, the required pressure is usually around 13-20 psi. But if you have multi-port injection, the pressure requirement is much higher, usually 40 psi or more, sometimes as much as 60 psi. If it is carbureted, though, it takes very low pressure, 5-7 psi, and you would need to check if the gas is actually getting inside the carb and filling the fuel bowl inside.

But back to the injector circuit: every injector has only two wires to it: a power wire and a ground wire. The power wire is constant voltage to the injector as long as the key is in run, or on, or in start. The injector is an electrical solenoid, and it gets the power on one side, and when the ground wire is grounded internally in the engine computer, the solenoid is energized, a fuel passage opens, and the injector sprays fuel out. This is called the injector pulse, it only happens for a split second. But you see why the injector must have fuel under correct pressure to shoot the right amount of gas into the engine. You can check the injector circuit, both power side and ground side, with just a simple test light. Post back if you want that, I can give you the procedure. Good luck, and probably good night.

May 28, 2015 | Cars & Trucks

2 Answers

Fuel injector just quite working


What is year--make--model? Check for voltage and ground at fuel injector. Check fuel pressure.

Dec 26, 2014 | Cars & Trucks

1 Answer

04 400ex has lots of spark cpmpression and fuel timing is correct i dont no wat else to do


Did you check fuel pressure with a gauge? Autozone, some others, rent or loan fuel pressure gauges. If fuel pressure is good, check injector circuit. Each injector has two wires-power and ground. With key on- engine off, each injector should have battery voltage on the power wire (each power wire would be same color to all injectors)-use a test light or voltmeter to check for power.

If injectors have power to them with key on, post back and I can tell you how to check injector ground circuit with a test light. .... well here, you clip the test light lead on the POSITIVE battery post, and stick tester probe into the ground side terminal of injector connector. Now have someone crank the engine over: if ground circuit is good, the test light should be blinking. If both tests work, power and ground circuit, then injector circuit is good and they should be pulsing to spray fuel into the cylinders. Let me know what you find.

Jun 08, 2014 | 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

1 Answer

Won't start


Maybe your injector circuit is not working. Pull off one injector connector and check for power on one of the two wires to the injector-turn key to on, and one wire should have power. If no power with key on, pull off all injector connectors and recheck for power- a shorted injector may shut down the injector circuit, that's why to pull off all injector connectors. If still no power on one wire to each injector, diagnose the injector drive circuit. Also check the fuse for injectors.

Nov 01, 2012 | Ford Cars & Trucks

1 Answer

Number one injector came loose in 2001 toyota avensis d4d, removed injector pipes, wiring on injectors and rocker cover, tightened down injector, rebuilt and is now down on power.


REPLACE THE FUEL INJECTOR CANT REBUILT IT.IF YOU REMOVE FUEL INJECTORS FUEL RAIL YOU HAVE TO REPLACE GROMMETS AND O RINGS ON ALL THE FUEL INJECTORS IF NOT YOU WILL HAVE A INTAKE LEAK AT THE OLD FUEL INJECTORS SEALS.REPLACE THE FUEL INJECTOR YOU REBUILT THEY HAVE TO BE REPLACED.

Mar 02, 2011 | Toyota Camry Cars & Trucks

1 Answer

I have a 4 cylinder gsx eclipse but im getting a p0205 code which is a injector circuit malfunction in cylinder 5. why would i get this code?


CODE PO205 - IS INJECTOR 5. YOU NEED TO USE FUEL INJECTOR NOID TEST LIGHT OR A STETHOSCOPE TO CHECK ALL FUEL INJECTORS TO SEE OR HEAR WHAT FUEL INJECTOR NOT WORKING.USE TEST LIGHT IF BLINKS FUEL INJECTOR GETTING POWER.THE STETHOSCOPE USE IT LIKE A DOCTOR TO HEAR WHAT FUEL INJECTORS WORKING.YOU SHOULD HEAR CLICKING NOISE IF YOU HEAR NO INJECTOR NOISE AND IT IS GETTING POWER.THE FUEL INJECTOR IS FAULTY.

Nov 09, 2010 | 1995 Mitsubishi Eclipse

1 Answer

My injectors have no power going to them. i just replaced fuel pump and relay. i have fuel going to my 350 tbi but nothing coming out the injectors.it wont start and i have no power at the injector so i...


my injectors have no power ging to them. i just replaced fuel pump and relay. i have fuel going to my 350 tbi but nothing coming out the injectors. it wont start and i have no power at the injector so i dont know if its the ecm or what

Nov 08, 2009 | 1988 Chevrolet K1500

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.

Mar 23, 2009 | 1988 Saab 900

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