Hello,

I have got p1229. Car was standing for past 4-5 years. Cleaned everything around TB, changed plugs, some gaskets and even TPS sensor. Response to throttle 4x times slower than it should be. All intake tubes, breathers and etc in place and no cracks. Hands down…

 

1. Throttle Motor Disconnection or Poor Connection: Check if the throttle motor is disconnected at its plug or has a poor connection. Ensure that the electrical connectors are securely attached. If necessary, clean the connectors with electrical contact cleaner to remove any corrosion that might be causing false codes1.
   
2. Wiring Issues: Inspect the wiring to the throttle motor for any shorts or open circuits. Damaged or frayed wires can lead to fault codes. If you find any issues, repair or replace the wiring as needed.
   
3. Throttle Motor Failure: If the throttle motor itself has failed, it may need replacement. While the motor might not be available as a standalone item, you could explore options from a breaker or specialized Jaguar parts suppliers[size=8333px].[/size]
   

 

Its also restricted performance and failsafe mode. I guess its in limp home mode.Throttle motor shows 0 A. Position sensor works and shows some differences.

 

You have a 2011 XJ. This is the 98’-03’ XJ8/XJR X308 section. You need to post in the X351 section.
If you are in fact posting for a X308 vehicle, please update your profile so members can more accurately help you out.

 

There is info in topic! That question about 2002 XJR.

 

You’re right! I guess I can’t read today. My bad!

Try swapping the throttle body relay with a less important one such as a rear fog light relay. Check power supply voltage at the TB connector and ground resistance from the same connector to the body.

 

Seems obvious, but I don't see the info. Are you using fresh gas?

 

Yes. Changed filter. Spark plugs etc. No leaks. I believe that it will be a failing throttle motor itself. I have found out that most of the parts fit from 3.2 TB. I will check maybe there is possibility to change only TB motor without taking out and changing whole TB.

 

I changed the TB in my XJR with out of a N/A car. From memory there was the throttle cable bracket, one plate on the back (couple of bolts) with a hose attached & something else equally minor to swap between them. It's probably as easy to fit a whole TB as try to swap the motors.

 

Thank you! Already solved. Used 3.2 TB motor. Swapped it without taking out TB from the car.

 

Glad to hear you got it fixed. It can be frustrating to have an issue like that.

 

Yes for sure. But still there is issue with abs module. Fault c1095 - pump motor circuit failure… It can cause limp mode too.. Maybe someone had this issue?