Hello-
I've read through many posting about P0128 and have not been able to use advice to correct the issue I'm having so I'm hoping if I explain my symptoms it might help others help me.
2011 XKR 175
Issues- P0128 code keeps returning
Resolutions I've tried
Replaced the thermostat twice- OEM
Replaced Coolant temperature sensor twice
Replace Coolant using a vacuum system to ensure no air is in coolant system- Orange coolant

As of last week the new battery was dead and had to jump start car - I've not driven it in 2 weeks.
Speed controller A code popped up after jump started and tranny acted funny- gear box fault.
Temperature runs somewhere between 183 and 203 degrees and does go back an forth between the range
Reset MIL and drove for 2 hours but P0 128 still pending when checked with scanner along with Evap and EGR cycle not complete - therefore the Emission system is not cycled for car to pass Emission test yet
Is it typical for these cars to be in second gear from a dead stop? Used paddles to start out in first and shifted through gears without any issues
I have several Jags- 2 XJ and have a lot of mechanical training but this is boggling my knowledge and cannot resolve.
With check engine light coming on the car will not pass Emissions test.

Not much information posted on 2011 series issues - most has been for 4.2 liters engines.
Mine is a SC 5.0.

Please post advice and possible solutions. Thank you

Welcome to the forums skidman,

Good to have you with us.

The New Member Area - Intro a MUST forum is for newbies to tell us something about themselves and their vehicle. It is not for complex technical discussion which should be posted in the relevant MODEL forum. Your question will be seen there by members with the same 5.0 model and is likely to receive more appropriate advice rather than just sympathy.

Follow this link https://www.jaguarforums.com/forum/xk-xkr-x150-33/ to the XK/XKR forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for information on regular issues. You can also use the US Midwest Region forum by following this link https://www.jaguarforums.com/forum/us-midwest-39/ to find other members in your region.

Please read the guidance for new members ( https://www.jaguarforums.com/forum/n...ned-up-241802/ ) which answers many of the most frequent questions about getting started.

Enjoy the forums.

Graham

Graham-

Thank you for the information: with exception of signature I signed up on this forum in Sept.....
I've edited my signature as advised.

Thank you
Larry

Hello,
I'm sorry your Jaguar isn't working correctly, I hope you can get to the bottom of all your issues.
Welcome to the forums from ElinorB.
(';')

Thank you ElinoB.

welcome to the forum - enjoy!!!!!!!!!!!!!

Welcome aboard Larry.

Welcome to the Forums.

Welcome to Jaguar Forums Larry,

Good to have you with us.
Enjoy the forum.

If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help