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Finding the correct ECU for my X300

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1 2)

Bremz on Jan 5, 2025

May 20, 2026 06:01 PM
by b1mcp

21

1,419

XJ XJ6 / XJR6 ( X300 )

Great Jaguar XJ Video!

hm1 on May 15, 2026

May 15, 2026 11:29 AM
by hm1

0

234

XJ XJ6 / XJR6 ( X300 )

breather, clean, cleaner, cleaning, cooler, diff, differential, gunk, jaguar, rear, rotate, valve, vent, x300, xjr

proper way to clean the differential breather

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1 2)

97x306 on Dec 16, 2012

Apr 8, 2026 02:55 PM
by katar83

26

30,539

XJ XJ6 / XJR6 ( X300 )

1995, bentley, crimping, ebrake, installation, jaguar, replacement, reset, seal, spx, sunroof, sunrrof, tool, x300, xjr

HELP! sunroof seal installation x300

alfatim on Jul 2, 2012

Jan 14, 2026 08:06 PM
by olivermarks

8

7,252

XJ XJ6 / XJR6 ( X300 )

backlight, bulb replacement, j-gate, jaguar, x300

J-Gate backlight

katar83 on Nov 19, 2025

Nov 19, 2025 08:59 PM
by Ya Tigor

1

478

XJ XJ6 / XJR6 ( X300 )

1313, 1997, 97, code, codes, engine, fix, jag, jaguar, p0300, p1313, p1314, p300, x300

Help Please. Code P0300 ??

Markos on Jan 30, 2014

Aug 20, 2025 06:28 PM
by PBoudr

17

26,906

XJ XJ6 / XJR6 ( X300 )

aj9500r, alpine, backlights, radio, x300

Jaguar X300 - Alpine AJ9500R backlight repair

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1 2)

katar83 on Feb 22, 2020

Aug 9, 2025 01:04 AM
by someguywithajag

25

10,817

XJ XJ6 / XJR6 ( X300 )

Spark plugs X300 4.0

biffta on Jan 16, 2013

Mar 3, 2025 02:53 PM
by 96Vaden

13

4,965

XJ XJ6 / XJR6 ( X300 )

1996, crank, cranking, cranks, cranl, engine, forum, jaguar, sensor, start, wont, wrong, x300, xj12, xj6

1996 Jaguar XJ6 cranks but wont start

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1 2 3 ... Last Page)

awil on Jul 25, 2012

Jan 27, 2025 11:00 PM
by Parker 7

63

67,099

XJ XJ6 / XJR6 ( X300 )

2000, bob, control, gauff, jaguar, locking, module, modules, problem, reprogram, security, start, stype, transponder, x300, xjr

Replacing X300 Security & Locking Module

biffta on Feb 18, 2010

Jan 18, 2025 09:32 AM
by Parker 7

15

22,711

XJ XJ6 / XJR6 ( X300 )

2000, code, db7, egr, erg, jaguar, p0401, type, x300

P0401 EGR Code

UK_MGA on May 11, 2012

Nov 17, 2024 07:49 PM
by Vee

7

3,757

XJ XJ6 / XJR6 ( X300 )

x300 pump not pumping, instrument panel lights once

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1 2 3)

Kay69 on Oct 10, 2024

Oct 29, 2024 05:06 PM
by Parker 7

43

2,674

XJ XJ6 / XJR6 ( X300 )

Looking for input from multi-Jag owners

alberniken on Sep 1, 2024

Sep 12, 2024 05:20 AM
by Grant Francis

1

1,823

General Tech Help

aj6, drive, engine, ide, idle, idling, intermittenly, jaguar, neutral, occasional, overrun, stumble, stumbles, stumbling, x300

Warmed up Engine stumbles at idle (in Drive)

dannyS on Oct 19, 2013

Aug 27, 2024 02:29 AM
by tiger351w

10

4,883

XK8 / XKR ( X100 )

02, chain, cover, jaguar, leak, leaking, locking, oring, rattle, tensioner, timing, tool, x300, xjr, xtype

Timing Chain Tensioner Dumping Oil

gunnerman on May 3, 2010

Jul 26, 2024 07:34 AM
by Olddog1953

3

3,794

XJ40 ( XJ81 )

2006 XJ8 “L version” vs base?

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1 2)

Cino61 on Jul 6, 2024

Jul 9, 2024 09:16 AM
by 87LC2

22

6,435

XJ XJ6 / XJ8 / XJR ( X350 & X358 )

a X300/xj6 ‘95-‘97, INPUT, OPINIONS? 79k mi.? others

Cino61 on Jun 25, 2024

Jun 30, 2024 08:33 PM
by Gottabekidding

16

905

XJ XJ6 / XJR6 ( X300 )

1996, adjustment, check, issues, jaguar, neutral, problems, rotary, safety, switch, x300, xj12, xj6, xj8, xjr

Neutral safety Switch problem?

MLRocafella85 on Nov 11, 2010

Jun 30, 2024 08:28 AM
by Spud Maat

8

6,951

XJ XJ6 / XJR6 ( X300 )

1997, 575, conversion, head, headlight, hid, jaguar, kit, led, lights, projector, removal, x300, xj6, xj8

Headlight Change ,Help Please

Satterfield on Sep 27, 2013

Apr 28, 2024 03:12 AM
by Spud Maat

8

9,709

XJ XJ6 / XJR6 ( X300 )

AJ9500R aerial going up and down randomly or not working at all

katar83 on Mar 21, 2024

Mar 21, 2024 05:16 AM
by katar83

0

658

XJ XJ6 / XJR6 ( X300 )

amp, amplifier, deck, door, factory, install, jaguar, location, rear, replacement, speaker, stereo, subwoofer, x300, xj8, xjr

Amp/sub install wfactory stereo (XJ8)

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1 2 3)

97Aggie on Jun 28, 2009

Mar 7, 2024 01:26 PM
by wasser

40

54,692

XJ XJ8 / XJR ( X308 )

bracket, crank, mod, pics, thread, x300, xjr

Instant Photo Shoot Thread for X300's: Post a Pic As It Sits

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1 2 3)

carguy101 on May 20, 2013

Feb 26, 2024 12:20 PM
by italcarnut

51

11,089

XJ XJ6 / XJR6 ( X300 )

1997, 95, 97, body, bu, control, dash, dimmer, illumination, jaguar, light, lights, location, module, x300, xjr

97 jag xjsl dash lights

Mike Starks on Dec 30, 2010

Feb 23, 2024 06:21 AM
by TRUND

13

8,454

XJ XJ6 / XJR6 ( X300 )

XJR 6 - X300 - fried Alternator replacement ... type & process

ALProgress on Aug 15, 2014

Feb 8, 2024 02:57 PM
by Parker 7

6

5,672

XJ XJ6 / XJR6 ( X300 )

Buying Advice

MaxCas on Dec 21, 2023

Dec 22, 2023 04:15 AM
by OxfordJoe

3

849

XJ XJ6 / XJR6 ( X300 )

76, basic, diagram, diagrams, electric, jaguar, jump, m0t0rm0uth, put, rear, switch, swith, window, wire, wiring, x300, xj12

Window switch wiring diagram problem

m0t0rm0uth on Oct 17, 2009

Nov 16, 2023 10:55 AM
by LnrB

10

27,457

XJ6 & XJ12 Series I, II & III

X300 ignition coil - the saga continues

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1 2 3)

trev300 on Jul 19, 2021

Oct 9, 2023 11:25 AM
by labcoatguy

52

12,196

XJ XJ6 / XJR6 ( X300 )

98, arden, body, bodykit, forums, jaguar, kit, kits, paramount, rebody, wwwadameshcoindexasp, x300, xj8, xjr, xk8

Body kits

Jeehova on Jul 25, 2007

Jun 10, 2023 08:24 AM
by pcolapacker

14

21,004

XJ XJ8 / XJR ( X308 )

2008, fob, fobs, jaguar, key, lost, program, programming, reprogram, reprogramming, software, working, x300, xj6, xkr

Program Key Fob Help

gdrag on Jan 23, 2009

Apr 3, 2023 07:17 PM
by Martin S.

17

24,586

XK / XKR ( X150 )

1996, 2012, 95, computer, ecu, engine, jag, jaguar, management, reboot, reset, x300, xj, xj6, xj8

Computer reset procedure

EZDriver on Mar 24, 2012

Mar 30, 2023 05:26 PM
by Parker 7

16

34,511

XJ XJ6 / XJR6 ( X300 )

1995, books, ect, jaguar, manual, owner, owners, pack, parts, service, sport, x300, x305, x306, xj, xj6, xjr

Jaguar X300/X305/X306 Literature Pack FAQ

Oubadah on Nov 2, 2010

Mar 17, 2023 02:22 AM
by Spud Maat

19

51,617

XJ XJ6 / XJR6 ( X300 )

darts, free, jaguar, mountings, mounts, play, rack, ruts, series, side, sport, steering, wiggle, x300, xj, xj6

Steering Rack Play

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1 2)

n_sweeney on Jun 5, 2012

Mar 8, 2023 12:05 PM
by Parker 7

23

14,224

XJ XJ6 / XJR6 ( X300 )

1995 xj6, battery charging, battery drain, x300

X300 battery won't charge properly despite working alternator

XJfelix on Jan 21, 2023

Jan 22, 2023 04:49 PM
by Parker 7

9

2,766

XJ XJ6 / XJR6 ( X300 )

1998, 95, fob, fobs, jaguar, key, phob, program, programing, programming, reprogramming, x300, xj, xj8, xjr, xk8

Key Fob programming

ant17 on Jun 13, 2011

Oct 15, 2022 06:06 PM
by clubairth1

6

6,196

XJ XJ8 / XJR ( X308 )

1997, aftermarket, cd, changer, factory, harness, jaguar, jvc, radio, radios, stock, x300, xj6, xj8, xjr

Most compatible brands: Aftermarket radio, non-premium stock sound system?

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1 2)

Randy 1 on Jul 14, 2013

Oct 11, 2022 07:39 AM
by Spud Maat

25

56,695

XJ XJ6 / XJR6 ( X300 )

2001, 2005, bulb, change, driving, fog, jaguar, light, parking, put, replace, replacing, type, typs, x300, xj6, xtype

Changing fog light bulbs

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1 2)

danrey on Apr 16, 2010

Oct 10, 2022 07:30 AM
by Peter_of_Australia

23

19,146

S-Type / S type R Supercharged V8 ( X200 )

4HP22 Flaring when going uphill?

JimmyS on Aug 30, 2022

Aug 30, 2022 08:03 PM
by Don B

3

892

XJ XJ6 / XJR6 ( X300 )

X300 with 91k miles or manual 3.0 X-type

turtle65 on Aug 13, 2022

Aug 14, 2022 11:48 AM
by labcoatguy

5

636

XJ XJ6 / XJR6 ( X300 )

Manual 3.0 Sport x-type or 97X300 w/ 91k miles

turtle65 on Aug 13, 2022

Aug 14, 2022 06:44 AM
by Thermo

1

599

X-Type ( X400 )

Daimler 4.0 lwb

nazomar29 on Jul 22, 2022

Jul 22, 2022 07:50 AM
by nazomar29

3

1,447

XJ XJ6 / XJR6 ( X300 )

1996, 1997, 96, car, dash, dashboard, flashing, flickering, idiot, instrument, intermittent, jag, jaguar, light, lights, shaped, warning, x300, xj6

dash warning lights flashing

porschefixer on Jan 26, 2011

Jun 28, 2022 04:28 AM
by Shaohua

15

21,878

XJ XJ6 / XJR6 ( X300 )

1995, 1996, arrow, clean, crankcase, design, jaguar, location, mark, point, sensor, supercharge, tdc, tensinor, tensioner, x300, xj6, xjr

Note: The redesigned upper tensioner on the X300 can also fail

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1 2 3 ... Last Page)

Christian 96 XJR on Oct 4, 2011

Apr 29, 2022 12:48 PM
by catlover999

66

42,151

XJ XJ6 / XJR6 ( X300 )

02, 1997, easy, fuel, fuelpump, fule, ga8285, globalautomotivegmfuelpumpkitin, jaguar, location, position, pump, replacing, stall, x300

X300 Fuel Pump Replacement - Easy Way

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1 2)

Suede on Nov 8, 2012

Jan 14, 2022 04:28 AM
by Patriots79

39

34,626

XJ XJ6 / XJR6 ( X300 )

Has anyone Refurbished/repaired a power steering pump?

BigBossRadio on May 30, 2014

Jan 13, 2022 05:54 AM
by dagny747

15

12,085

XJ XJ6 / XJR6 ( X300 )

2001, brake, braking, caliper, disk, end, front, jaguar, shake, shaking, shudder, wheel, x300, xj8, xk8

Front end shake

sweeper on Sep 21, 2013

Jan 11, 2022 06:13 PM
by xalty

12

11,777

XJ XJ6 / XJ8 / XJR ( X350 & X358 )

1979, 1980, cj, difference, differences, jaguar, jeep, means, picnic, plas, rear, regular, seat, table, tray, vanden, vandenplas, x300, xj6, xj8

Whats the difference between the Vanden Plas and normal XJs

XavierJ on Feb 3, 2011

Dec 31, 2021 01:11 AM
by Jagboi64

18

36,029

XJ XJ6 / XJR6 ( X300 )

1995, 19951997, 1997, armrest, cup, cupholder, fix, holder, install, jag, jaguar, latch, x300, xj12, xj6

cupholder in the center armrest

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1 2)

R Fife on Dec 4, 2011

Dec 30, 2021 11:34 AM
by Parker 7

24

21,402

XJ XJ6 / XJR6 ( X300 )

1994, adaptor, aftermarket, arsenal, car, cassette, harness, jaguar, jammed, jvc, kda725, oem, radio, stereo, stock, x300, xjs

Factory Radio vs After Market

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1 2)

bob5tafford on Jun 8, 2011

Dec 19, 2021 04:10 PM
by alexxjr306

38

51,411

XJ XJ6 / XJR6 ( X300 )

aluminium, aluminum, columbia, dirt, dust, jaguar, mag, paint, polish, refinishing, rims, sc, stock, theyre, wheels, x300

Refinishing stock wheels..

commercialcobb on Sep 23, 2008

Dec 14, 2021 08:34 PM
by alexxjr306

13

10,091

XJ XJ6 / XJR6 ( X300 )

1997 x300, carrier bars, roof bars, x300, xj6

Roof bars (Carrier bars) on XJ6 X300

Max1417 on Sep 14, 2021

Sep 16, 2021 05:18 AM
by GGG

8

2,428

XJ XJ6 / XJR6 ( X300 )

Threads Tagged with x300