DisclaimerJaguar XJ (X351) V8-5.0L SC Technical Service Bulletin # JTB00241 Date: 111025

DisclaimerJaguar XJ (X351) V8-5.0L SC Technical Service Bulletin # JTB00241 Date: 111025

Fuel System - Misfire/Hard Start/Rough Idle/Poor Economy

No. JTB00241NAS1

25 OCT 2011

SECTION: 303

Engine Misfire / Injector Clogging / Air Intake System Cleaning

AFFECTED VEHICLE RANGE:

CONDITION SUMMARY:

Situation:

The engine may exhibit a misfire, poor fuel economy, hard starting, and / or a rough idle condition. The engine Malfunction Indicator Lamp (MIL)

may also be illuminated with misfire Diagnostic Trouble Codes (DTC) P0301 through P0308 and P0316, depending on the affected cylinder(s),

stored in the Engine control module (ECM). This may be caused by poor fuel quality or fuel contamination, leading to clogged fuel injectors and

restricting the fuel injector flow rate.

NOTE:

After basic testing has been carried out (checking coil and harness for damage, checking injector harness connections, spark plug fouling, correct

fuel pressure, no fuel filter blockages etc) and if no fault can be found, then using the BG special tool (BG 9210 [or BG 9290] VIA(TM) Vehicle

Injection Apparatus) and cleaner (BG Air Intake System Cleaner 206 and BG 44K(R) Power Enhancer(R) 208) please carry out a fuel induction

system cleaning.

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Action:

In the event of a customer concern of the above, refer to the Repair Procedure outlined below to clean the fuel injection system using a pressure

cleaner.

PARTS:

NOTE:

Both BG Air Intake System Cleaner 206 and BG 44K(R) Power Enhancer(R) 208 are to be locally sourced and must be claimed as 'sublet', using

code 'ZZZ001'.

BG Air Intake System Cleaner - BG part number 206 (11oz can)

BG 44K(R) Power Enhancer(R) (added to fuel tank) - BG part number 208 (11oz can)

TOOLS:

NOTE:

Each dealer will be provided with both special tools free-of-charge from BG.

VIA(TM) Vehicle Injection Apparatus - BG part number 9210 or 9290

Single remote flexible holder with spray jet - BG part number 9245K

WARRANTY:

NOTE:

Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only.

Always refer to DDW to obtain the latest repair time.

NOTE:

Both BG Air Intake System Cleaner 206 and BG 44K(R) Power Enhancer?208 are to be locally sourced and must be claimed as 'sublet',

using code 'ZZZ001'.

DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.

Normal Warranty policies and procedures apply

REPAIR PROCEDURE

CLEAN FUEL INJECTION SYSTEM

1. Refer to Workshop Manual, section 303-04: Fuel Injection Component Cleaning Using Pressure Cleaner, and clean the fuel injection system.