Question about 1994 Jaguar XJ6

Open Question

I HAVE NO FUEL PUMP OPERATION. THE CAR IS GIVING ME FIRST THE CODE66 FUEL FAIL. NOW IS GIVING ME CODE 22 FUEL FAIL

Posted by on

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Astra randomly cuts out at lights and engine May be sluggish,randomly code is P0093,FUEL RAIL SENSOR?


This diagnostic trouble code (DTC) is a generic powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may be slightly different depending on the model.
When the computer sets this code it senses a large fuel leak in the high pressure section of the engine. The ECM in a diesel always monitors and controls the fuel pressure from the fuel injector pump to the injectors as long as the engine is running.
To set a code P0093 the ECM must sense a sudden large drop in fuel pressure within the system. This drop in fuel pressure can be internal, external or caused by a faulty sensor signal to the ECM.
When this happens, the ECM sets the code, goes into fail-safe mode which will suspend the fuel injector pump operation and allow one minute to pull over before it shuts the engine down. It will remain in fail-safe mode until the key is off.
The engine may run again but investigate the problem first. This problem will not correct itself or go away. The engine could shut down at any time or speed.
Unlike gasoline engines with fuel injection pressures of 30 to 50 PSI, diesel engine fuel pressure runs up in the Megapascal range, from 4,500 to 30,000 PSI. It takes very high fuel pressure to force fuel into the high compression cylinder of a diesel.
As you progress in diagnosing the problem be always mindful of the fuel pressure when the engine is running. It is ridiculously high! You have a code P0093 stating there is a large fuel leak in the system. Use caution when sticking your nose under the hood of a running engine with this code, or wrenching on the fuel system.
Symptoms Symptoms of a P0093 diagnostic trouble code may include:
  • Code set and malfunction indicator lamp illumination (check engine light)
  • Engine will enter fail-safe mode and shut down within one minute
  • Possible large loss of power above idle
Causes Potential causes for this DTC include:
  • Fuel injector failure
  • Fuel line common rail leak
  • Fuel pressure sensor malfunction
  • Fuel pump or lift pump failure
  • Fuel heater constantly on
  • Fuel temperature sensor failure
  • Leaks at any point in the high pressure circuit
  • Electrical connector corrosion or seating problems
  • Fuel pressure regulator malfunction
  • Fuel filter plugged dropping the fuel line volume
  • Injector pump leak
  • Fuel control actuator failure
  • Cascade overflow valve malfunction
  • Short in the electrical harness at the injectors or to the ECM
  • Fuel pressure limiting valve
  • ECM failure
Diagnostic Steps & Possible Solutions
  • Start with the engine off and doing a walkaround inspection for obvious fuel leaks between the fuel tank and the engine.
  • Lift the hood and check the oil and level. If the oil level has risen, smell the oil. If it is heavily contaminated by fuel, an injector most likely failed in the open position. Do not start the engine again until the oil and filter is changed.
  • Look under the hood for leaks. Start at the injector pump and follow the fuel lines to the fuel injector rail. Look at the injectors for signs of leaks.
  • Pull the electrical connector off the fuel pressure sensor and look for fuel in the connector. A failed sensor will allow fuel up through the sensor into the connector.
  • Check when you last changed the fuel filter. A plugged fuel filter will drop the volume enough to set the code.
  • Check all electrical connectors on the sensors and wiring harness to the injectors for missing insulation, corrosion or loose connections. If no obvious leaks have been found, go online and look up the TSBs (technical service bulletins) for your year and make vehicle. Diesels have no lack of problems as the TSBs will indicate.
Look for the code and associated repair procedures and probable causes. Chevy and Dodge reads like a book. The TSBs will include recalls on various items as well.
Look at your warranty. Most diesel engines have long warranty periods for various items. Many cover injectors for 7 years or better and 200,000 miles.
The dealer is the next step if no deficiencies are found. Checking the fuel pressure and the operation of the ECM takes special tools for a diagnosis.
Tip: Diesels outlast a normal gasoline powered engine when properly serviced. But they demand service at specific intervals to operate properly. There is no free lunch with these. Do not use any seals or gaskets that are not OEM. The pressures and temperatures call for the use of certain materials resistant to these temperatures and pressures.

Jul 12, 2016 | Opel Astra Cars & Trucks

1 Answer

2000 mercurt grand marquis


Not guessing as to what the problem is , testing for voltage drop problems with a volt meter . posted a video on youtube yesterday . If your still looking for guesses forget it , no one on here could say for sure without testing the circuit an hooking up a scan tool to see if PCM is energizing the relay . Do yourself a favor an take it to a qualified repair shop . Fuel Pump Electrical Circuits Description and Operation If you can't learn how to test from this guy , better take to a repair shop .

Mar 01, 2017 | Ford Cars & Trucks

1 Answer

Transit pump code p0216 how can i fix this


P0216 DTC - Injection Timing Control Circuit Malfunction and this means the diesel fuel injection pump has a timing failure. This could be that the injection pump timing needs adjusted OR the failure is internal to the injection pump and therefore non-adjustable.

NOTE: If your vehicle is a Dodge Ram with Cummins engine then be aware that fuel delivery problems frequently cause this code. Prolonged fuel delivery problems can cause injection pump failure!

Symptoms of a P0216 DTC may include:
Low power
Crank, but no start
Hard start
Displays an intermittent stumble or miss
Engine may start and then stall
Engine may appear to drive fine but surge at idle


The most frequent cause of this code is a bad injection pump due to poor fuel delivery. Fuel delivery problems could be:
A plugged diesel fuel filter
An in-tank blockage
Air in the fuel due to a cracked in-tank fuel ine above the fuel level
Bad transfer (lift) pump
Injection pump out of time


Possible Solutions: First, simply check if your injection pump timing is adjustable. If so, check the timing and adjust if necessary.

If you think that you may have a fuel delivery problem, then check the lift pump operation. On Dodge Ram with the Cummins engine, the lift pump should produce about 45 oz of diesel in 25 seconds of operation. This can be performed by disconnecting the fuel hose from the injection pump and pumping the fuel into an approved container. Bump the engine over but do not start it. Then the lift pump will operate for 25 seconds. If the fuel is aerated, then check/repair fuel line and recheck.

With the fuel hose connected the fuel pressure should be 10psi. If the fuel delivery tests fail, replace the diesel fuel filter and recheck.

If it still fails then verify there are no restrictions in the fuel tank

Then replace the lift (transfer) pump. IT SHOULD BE NOTED that if this code surfaced after a routine fuel filter replacement or if you have any of the above symptoms after routine fuel filter replacement, then suspect the fuel transfer pump. This occurs because even a weak transfer pump can still provide enough fuel for the engine to run. But when the fuel system\'s prime is lost due to fuel filter replacement, it may not restart again without fixing the fuel delivery problem.

If you found your injection pump to be bad, the lift pump should be checked for operation to protect the new injection pump. This is because weak or low output from lift pump are common cause of injection pump failure. There are some aftermarket kits that can be purchased to warn the operator when the fuel pressure/volume drops to level that could damage the injection pump.

Hope this helps (remember to rating this free answer and leave a testimonial comments).

Oct 11, 2011 | Cars & Trucks

1 Answer

My car is making a roaring noise the code read multiple misfire could this be the fuel filter since i am always riding the car on empty.


could be more like the fuel pump, you should never run a automobile gas tank any lower than 1/4 of the tank, the reason is that the lower the amount of gas is in the tank, the fuel pump has to work harder to pump the fuel, and sometimes , this can cause the fuel pump to over heat , and fail, the codes that you recieved should be looked up in the code retrieving booklet to see just what the real problem of the code is, correspond the #'s recieved by the information connected to the code in the booklet. hope that this information helps you.

Feb 13, 2011 | 2004 Pontiac Grand Prix

2 Answers

The fuel pump on my 1988 crown victoria runs constantly when the engine is running and pump is very noisy. When i turn the key on, the pump runs then stopps but runs constantly when engine is running. Why?


The fuel pump is supposed to run constantly when the engine is running. It is pumping fuel to the engine which is in constant need of fuel. It is starting when the ignition is turned on and then shuts down after a few seconds if you do not start the engine. This is exactly what it is supposed to do. You have no problem except for the pump being noisy. On a car that is 22 years old, I would suspect the fuel pump is failing and the noise you hear is it's death nil. Change the fuel filter and if the noise continues be prepared to have the pump replaced. It may fail suddenly or it may become hard to start. If you have never had it replaced just go ahead and do so, to prevent being stranded and a towing fee when it does fail.

Mar 21, 2010 | 1988 Ford Crown Victoria

1 Answer

I started the car and the first time i turned it over (this is a manual) it died while still in neutral.The second time, i got it in reverse,got on the road and it died in first.when we start it, it runs...


Well you could have definetly run out.

As far as the fuel pump, there are lots that depends on if it was damaged. First off a fuel pump should never be run dry, damage CAN OCCUR. Second, if your car is up there in miles the fuel pump may be weak and not giving enough fuel, or you ARE IN FACT, out of fuel. Next, if the car is up in miles, and after you put gas in, and it runs fine...problem solved....and I wouldn't worry much about it, excpet for the fact that the fuel pump will fail sooner or later...allmost all do after 100-200 thousand miles on the car. If you put gas in and it works..drive till it doesnt run anymore. But try to keep fuel in the tank to get the best possible life from your fuel pump.

Jan 29, 2010 | 1996 Chevrolet Cavalier

1 Answer

We have replaced the injector pump and the fuel pump. We have also ran a code reader on it and no codes show up. The truck will start sometimes and then not turn over others. We can be driving down the...


I am assuming this is a diesel. It's probably still the transfer fuel pump. This pump must pump out at min 10psi. If it does not then the injector pump will soon fail, giving the symptoms you describe. To avoid all future fuel injection problems with all trucks with electronic pumps (as opposed to mechanical, pre '99?)I would recommend you bite the bullet and install a Fass fuel pump. My truck is an '02 with 750,000kms. Since I put on the Fass, at 591,000, I have had nary a problem.

Jul 14, 2009 | 1999 Dodge Ram

1 Answer

FUEL FAIL 14 CODE 14


this is the most common error code, just means the one of the nods in fuel pump misfired, on every model other than the ones for usa market, after clearing the error code on vcm the check engine light would reset. for our cars its programmed to stay on.
also get fail 17 fuel 17 same thing
it will not effect the running of the car or its performance
may run a little rich

Dec 31, 2008 | 1994 Jaguar XJ6

1 Answer

1992 XJ6 fuel fail code 22


FF22 is Fuel Pump Drive failure
ECU looks for sognal to the fuel pump relay.

found in jaguar-forum:
"I'm 99% sure that you have a bad fuel pump connector sending a high resistance fault to the CPU. Check your fuel pump connector at the pump. There is a very short harness in the trunk behind the spare tire and the panel behind it. I think the wires are red and blue? Anyway, the tough part is where they tend to go bad is actually at the pump in the top of the tank. You will not be able to get to it unless you have very small hands. You can get to it easier by dropping the tank a little, you probably won't have to remove the lines, just the tank straps. I have seen this connector overheat and burn. Try and clean it up and apply white grease to it.
If you start to have stalling problems in the future, strongly suspect this. Jumping the fuel relay gave me a little extra juice to the pump so I could move the car."

Oct 18, 2008 | 1992 Jaguar XJ6

Not finding what you are looking for?
1994 Jaguar XJ6 Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jaguar Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

yadayada
yadayada

Level 3 Expert

76630 Answers

SPEEDY CAR WORK SHOP...

Level 2 Expert

489 Answers

Are you a Jaguar Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...