Question about Jaguar XJ6

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Engine light< vcm code 44 fuel /failure - XJ6 Jaguar Cars & Trucks

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It is about sensor try to clean it, or replace it

Posted on Aug 09, 2008

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First you might need to actually have your engine checked. However, here is the way to turn it off.

  • Remove the passenger's side dash liner.

  • Look for the round red connector with a single pink/red wire that is hanging free.

  • Turn on the ignition but do not start the car and then press the VCM button.

  • When the code displays, use a jumper wire to short the pink/red wire to ground for 3 seconds.

  • Turn the key off for 10 seconds and then turn it back on and check for any more stored codes.

  • If there are more use the same procedure to clear them.

Posted on Aug 09, 2008

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Either rich or lean exhaust has been detected and is causing the code to trigger. It could indicate a bad O2 sensor.

Posted on Aug 09, 2008

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Bad O2 sensor.

Posted on Aug 09, 2008

  • Ryan Rogers
    Ryan Rogers Aug 09, 2008

    This is straight up an O2 sensor. Per Jaguar factory service manual, code 44 = bad O2 sensor on all XJ6 models.

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SOURCE: Check engine light VCM code "FUEL 14"?

my manual says fuel fail 14 deals with yourr coolant temperature sensor is no in operating range

Posted on Apr 14, 2010

6ya6ya
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Posted on Jan 02, 2017

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Need to get 98 s10 2.2 to rset passlock . howcan i trick computer withturn signal switch, i seen it done once


No you didn't ! you only think you did . Turn signal switch has nothing to do with it .
Ignition Lock Cylinder and Housing
The ignition lock cylinder is located at the upper right side of the steering column. The Passlock™ sensor is in the steering column. The Passlock™ sensor is separate from the key and lock cylinder. The key and the lock cylinder work together in order to determine if the proper ignition key was used to start the vehicle.
In the event of an open Class 2 serial data line between the BCM and the VCM/PCM, the vehicle will become fail-enabled if the VCM/PCM has already received the password from the BCM for that ignition cycle (the engine is running). In this event, the following conditions occur:
• The security telltale will be ON continuously.
• The VCM/PCM will become fail-enabled for future ignition cycles.
If a failure in the Class 2 serial data line occurs before the ignition cycle, when the VCM/PCM is not fail-enabled, the following conditions occur:
• The VCM/PCM will never receive a valid password in order to enable the fuel injectors.
• The vehicle will not start.

The design of the passlock™ system is to prevent the vehicle operation if the proper ignition key is not used in order to start the vehicle. The mechanical key, in normal operation, will turn the passlock™ lock cylinder. The passlock™ sensor will relay the passlock™ data to the body control module (BCM). The BCM will determine the validity of the passlock™ data. The BCM will send a code password to the vehicle/powertrain control module (VCM/PCM). When the VCM/PCM receives the correct code the VCM/PCM allows the fuel injectors to operate normally. The passlock™ system requires the VCM/PCM and the BCM to communicate the various functions in order to operate. These functions transmit over the class 2 serial data line CKT 1807. For an explanation of the class 2 serial data operation refer to Data Link Connector Circuit Description in Wiring Systems.
Your best bet , take it to a qualified repair shop , there is a real possibility of rendering your vehicle useless if you don't know what your doing

Nov 13, 2016 | 1998 Chevrolet S-10 Pickup

1 Answer

My 1999 bmw z3 will crank but will not start , code A9 & 44 shows up , air pump keeps running when ignition is on & drains the battery out.engine light & EML light comes on.


Not sure on this one.....if it's "drive by wire" that means the accelerator pedal is connected to the intake electronically, and that may be where the A9 code comes from. Saturns are drive by wire and it's a common failure point for them. spark, compression and gas is all you need for the engine to run. you can put a fuel pressure gauge on the rail to determine fuel, assume that the compression is good, and pull a spark plug and ground it while cranking to see if gets a spark...

Feb 18, 2015 | 1999 BMW Z3

1 Answer

My vehicle starts but when I step on the gas it dies.


After it starts does it idle good before you step on the gas , will it keep idling before you step on the gas ? Is the check engine light on ? What engine does the vehicle have ? This vehicle came with 5.0 L ,5.7L ,6.5 L , 7.4 L engines ,gas or diesel ? Three specific data sensors provide the vehicle control module (VCM) with the basic information for the fuel management portion of its operation. Three specific signals to the VCM establish the engine speed and air density factors. The engine speed signal comes from the distributor high resolution circuit. The VCM uses this information to determine engine speed (RPM). Air density is derived from intake air temperature (IAT) and manifold absolute pressure (MAP) sensor inputs. The IAT sensor measures the air temperature that is entering the engine. The IAT signal works in conjunction with the MAP sensor to determine air density. As the intake manifold pressure increases, the air density in the intake manifold also increases and additional fuel is required. This information from the IAT and MAP sensors is used by the VCM to control injector pulse width. One of these sensors could be bad or a plugged catalytic converter .

Dec 27, 2014 | 1998 GMC Suburban

4 Answers

How to reset security ignition on a 1999 chevy silverado?


There is a lot of info on this site that you can read up on. http://vatspasslockpasskeysecurityhelp.yolasite.com/

Sep 07, 2014 | 1999 Chevrolet Silverado 1500

1 Answer

Check engine light appears after 30 minutes of


ON-BOARD DIAGNOSTICS Dodge OBD1 Pre 96

1. Cycle the ignition key ON-OFF-ON-OFF-ON within 5 seconds. To cycle the ignition key ON means to turn it only as far as it takes to get the radio to come on. It does not mean to turn the engine on.

2. Count the number of times the "check engine" lamp on the instrument panel flashes on and off. The number of flashes represents the code. There is a slight pause between the flashes representing the first and second digits of the code. Longer pauses separate individual codes. For example, flash-flash-flash [pause] flash-flash represents the code 32.

A code of "55" represents end of error codes. If this is all you get then no error codes are stored in the computer. This is the normal condition

CODE Description of Trouble Code
11 Timing belt skipped 1 tooth or more from initial learned value, Intermittent loss of either camshaft or crankshaft position sensor, No crank reference signal detected during engine cranking
12 Direct battery input to PCM was disconnected within the last 50 key-on cycles (normal)
13 No change in MAP from start to run
14 MAP sensor voltage too low
15 No vehicle speed sensor signal
17 Closed loop temp not reached or engine cold too long
21 02s sensor problem (oxygen sensor), upstream or down stream
22 Engine coolant temp sensor out of range
23 Intake air temp sensor out of range
24 Throttle Position sensor out of range
25 Idle air control motor circuits, target idle not reached (+/- 200),vacuum leak found
27 Injector control circuit
31 Evap purge flow monitor failure or evap solenoid circuit
32 EGR system failure
33 A/C clutch relay circuit
34 Speed control Solenoid circuits
35 Rad Fan control relay circuit
37 Torque converter clutch solenoid CKT or park/neutral switch failure
41 Generator field not switching properly
42 Fuel pump relay control ckt, Auto shutdown relay control ckt, No ASD relay output voltage at PCM, Fuel level sending unit volts out of range, Fuel level unit No change over miles
43 Multiple/ single cylinder misfire
44 Battery temp sensor volts out of range
46 Charging system voltage too low
51 Fuel system lean
52 Fuel system rich
53 Internal control failure
54 No Cam signal at PCM
55 End of error messages (If you get this only, no errors were found)
62 PCM failure SRI mile not stored
63 PCM Failure EEPROM write denied
64 Catalytic Converter Efficiency Failure
65 Power steering switch failure

Jul 21, 2010 | 1995 Chrysler Concorde

2 Answers

What does it mean:Fuel 44 Fail in the VCM in a jaguar 1991 xj6 sovereign?


Code 44 means that the oxygen sensor is signaling the computer that the fuel mixture is bad - too rich or too lean.

Apr 09, 2010 | 1993 Jaguar XJ6

2 Answers

Check engine light VCM code "FUEL 14"?


my manual says fuel fail 14 deals with yourr coolant temperature sensor is no in operating range

Nov 02, 2009 | 1992 Jaguar XJ6

1 Answer

THE CHECK ENGINE LIGHT MY MY 1994 JAG XJ6 POPPED ON. IT RUNS GREAT, I'V HEARD NO ALARMS AT ALL, AND EVERYTHING STILL WORKS GREAT. I DID TRY TO PUNCH VCM BUTTON TO SEE IF IT THREW ME A CODE BUT IT DID NOT....


You can only retrieve the vcm read out code when that car was run, turned off and then the ignition is on(not running), then oush VCM and the code will flash - "fuel failure 69" or something like that. (SOME CODES LIKE 69 ARE ERRONEOUS CODES AND SHOULD BE RESET)What you can do is disconnect the battery for 45 seconds to reset the code and if it comes back on then there is an issue.
You can email me the code and I will tell you what it is jpseuropean@gmail.com
BEFORE YOU DISCONNECT THE BATTERY MAKE SURE YOU HAVE THE RADIO CODE, IF NOT THEN EMAIL ME AND I WILL SHOW YOU ANOTHER WAY TO RESET THE LIGHT.

Mar 07, 2009 | 1994 Jaguar XJ6

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

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