1996 Jaguar XJR throttle adjustment. If I use my scanner to see throttle % open at idle is at .8 or 800 RPM, wide open throttle 78%. If I adjust WOT to 100% using the adjustment in the cable assembly my idle goes to 18% reving the engine to 1800 rpm. I can't find the sweet spot .8 and 100%. What am I doing wrong? is there a better way to adjust WOT as the performance of the car is poor for a supercharged engine.

 

First you have to get the two throttle cables and the TRACS unit adjusted. I had posted the procedure many moons ago:

here: https://www.jaguarforums.com/forum/x...94/#post335715

Then you might likely have to modify the stud under the throttle pedal that holds the trans kickdown switch. I usually remove it, and fabricate a replacement with a bolt that I cut the head off of. Then use a couple of nuts as jamb nuts to work like the hex body of the stud you took out. [only shorter] That way you can extent the travel of the pedal for a full stroke on the throttle body cable.

Good luck!

 

have you resolved this problem?. new problem for me also, trying to figure it out. cable is adjusted and tracks are adjusted, same problem. I will take a look tomorrow again.