saajaguarxk

While driving on the highway (4 lane divided U.S.) my MY 99 XK8 went into safe mode as I slowed to merge on to the exit ramp. There was a hard downshift followed by the following additional indications on the dash panel. Traction Control Failure, Restricted Performance, Stability Control Failure, Transmission Fault, Fail safe engine mode. When I got the car home I retrieved the following codes: Air Related - P0102 (Mass or volume air flow circuit low input), Intake Air Temperature -P0112 (Intake Air Temperature sensor 1 circuit low input), Throttle Body - P1121 (Accelerator demand sensor A circuit range/performance). Went through all the pinpoint tests identified in On-Board Diagnostics Manual and Electrical Guide. All checked out OK. Both Service Bulletins 303-5498 (not needed) & 303-58 (Connector Material Mismatch) had been worked several years ago. I worked through all of the pinpoint tests referenced in the Jaguar On-Board Diagnostics Manual and found all tests OK. I visually checked the throttle cable at the throttle position sensor and found iit slightly soft. It wasn't droopy, just soft when pressed with a finger. I adjusted the throttle cable at the throttle position sensor at the throttle body 1 turn tighten. Erased all error codes. Car has operated normally. I hope this is the answer.

Hello Brian, no, it is a coupe. The next modification for this car is the JagWrangler Bluetooth enhancement. 😁

I have been researching various options in getting my 2007 Jaguar XK (X150) 4.2 normally aspirated engine to sound like the true 4.2 liter engine as it was designed. I like the factory sound that was developed but, it bothered me that the sound was engineered/modified through various valves that seemed artificial. Yes, I realize one could argue that the existence of a muffler, silencer, catalytic converter or for that matter a tail pipe is an engineered modification. I wanted a slightly deeper tone but, not one that resonated throughout the cabin when traveling on the Interstate/motorway/highway/freeway system at speed. After a lengthy search which included converting the exhaust to the XK-R back box, I decided on Mina Gallery Performance Exhaust developed for the XK. The stainless steel Mina Gallery exhaust looks very nice and feels very solid. The hardware included in the kit was also sturdy and had the feeling of substance. It was definitely not thin nor vulnerable to breaking when used properly. The rear dam was also well made and fastened easily to the location where the factory rear dam was removed. In total, it took about 1 hour. The Mina Gallery performance exhaust provided exactly what I was looking for in the deeper sound at idle and acceleration. Surprisingly and pleasantly, the sound in the cabin at causing speed (75 mph) on the Interstate highway is slightly quieter than the factory exhaust. That may be a function of my wishful thinking, but the difference at that stage is at least unnoticeable. If I accelerate the car and raise the rpms, yes, the deep tone appears, but then quickly settles down to normal cruise once the increase demand on the engine is gone. In conclusion, I love the enhancement. It was worth every penny! If anyone is interested, I have before & after sound clips and pictures.

I also have been researching various options in getting my 2007 Jaguar XK (X150) 4.2 normally aspirated gas engine to sound like the true 4.2 liter engine as it was designed. I like the factory sound that was developed but, it bothered me that the sound was engineered/modified through various means that seemed artificial. Yes, I realize one could argue that the existence of a muffler, silencer, catalytic converter or for that matter a tail pipe is an engineered modification. I wanted a slightly deeper tone but, not one that resonated throughout the cabin when traveling on the Interstate highway system at speed. After a lengthy search which included converting the exhaust to the XK-R back box, I decided on Mina Gallery Performance Exhaust developed for the XK. The stainless steel Mina Gallery exhaust looks very nice and feels very solid. The hardware included in the kit was also sturdy and had the feeling of substance. It was definitely not thin nor vulnerable to breaking when used properly. The rear dam was also well made and fastened easily to the location where the factory rear dam was removed. In total, it took about 1 hour. The Mina Gallery performance exhaust provided exactly what I was looking for in the deeper sound at idle and acceleration. Surprisingly and pleasantly, the sound in the cabin at causing speed (75 mph) on the Interstate highway is slightly quieter than the factory exhaust. That may be a function of my wishful thinking, but the difference at that stage is at least unnoticeable. If I accelerate the car and raise the rpms, yes, the deep tone appears, but then quickly settles down to normal cruise once the increase demand on the engine is gone. In conclusion, I love the enhancement. It was worth every penny! I have pictures and sound clips if anyone is interested. This is not an endorsement, just a humble personal opinion.