Driving about 80 mph last week my 2007 XKR went into what appeared to be "safe" mode. Lost most power (would idle) and coasted to the side of the road. Red and yellow error messages on the dash. Frustrated thinking of flat bed etc I sat there a bit (1/2 hour) and turned the car over again. Started up no dash indicators except check engine light.

Got to my next stop and turned it over again and got "cat full." Waited a little bit and tried again. All good except check engine light.

Went out this morning to pull the codes with scan tool and this is what it reads

PO128 - coolant Thermostat temp below regulating temperature (not sure if this is because it was reading current info and it is 30 outside? Under this is about 31 other reading it took. Let me know if you need them to help?

PO174 - System to lean (Bank 2) reading the forum looks like I need to clean the MAF sensor? What side is Bank 2?

P2105 - Throttle Actuator Control System - Forced engine shut down.

Not sure where to go with this? Just want my reliable ride back!

It goes into the shop for paint next week. I think I should clean the MAF senors and change the air filters. But then what? If the engine is running lean on air would send more fuel down the pipe to the CAT and clog it up? That doesn't sound good.

Help please

 

Could this be another thermostat problem?

https://www.jaguarforums.com/forum/x...message-67005/