Engine Controls - Pinging/Detonation on Acceleration
XJ303-09DATE
07/05
XJ range
Engine Detonation/Pinging During
Acceleration From Steady-State Driving
Reconfigure ECM
MODEL
2004 MY-ON XJR/Super V8
VIN
G00001-ON
Issue:
Some 2004 MY-on XJR/Super V8 vehicles may exhibit engine detonation (pinging) when accelerating from steady-state driving, typically at 70 mph (112 km/h). The issue can occur with light, medium or heavy throttle applications.
Action:
In case of a verified complaint of the above condition on a 2004 MY-on XJR/Super V8 vehicle, re-configure the ECM to overcome the detonation concern. Follow the Service Instruction outlined below.
Note:
Ensure WDS is loaded with software release JTP 759/39 or later.
1. Position Worldwide Diagnostic System (WDS) alongside vehicle, switch Portable Test Unit (PTU) "ON" and allow software to load.
2. Connect PTU to vehicle using diagnostic cable.
3. Navigate to configuration main menu.
4. Select and run "re-configure existing ECM" application.
5. After successful completion, switch "OFF" PTU, disconnect from vehicle and return WDS to original location.
Parts Information:
Warranty Information:
Warranty claims should be submitted quoting the information found in the table. This will result in payment of the stated time and, where applicable parts/miscellaneous expense codes as listed.
Note:
Repair procedures are under constant review, and therefore repair times are subject to change. The times quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
Disclaimer