XK8 Throttle Problems
Guest
Posts: n/a
XK8 Throttle Problems
I have a 2000 XK8 coupe with 70k miles.
The past week wile I was driving and had a loss of power / throttle the RPMs slowly decline for a few seconds (wile declining I can floor it and nothing happens, no loss of anything else) then I regain throttle control. During this I have had it stall twice…
The odd part is it only seams to do this when I’m around 1/8 gas and more when I go around a corner… but will do it on a striate away when accelerating (less then 30mph)
So I’m not sure if it was the throttle body or the fuel pump… I do a lot of my own maintenance, replace my own parts… the car has been good to me…
Side note….. I was getting the “ASC / TRAC not available” cleaned my throttle body and it went away… and when that happened I got the “P” something code for throttle position sensor…
Any help would be great…
The past week wile I was driving and had a loss of power / throttle the RPMs slowly decline for a few seconds (wile declining I can floor it and nothing happens, no loss of anything else) then I regain throttle control. During this I have had it stall twice…
The odd part is it only seams to do this when I’m around 1/8 gas and more when I go around a corner… but will do it on a striate away when accelerating (less then 30mph)
So I’m not sure if it was the throttle body or the fuel pump… I do a lot of my own maintenance, replace my own parts… the car has been good to me…
Side note….. I was getting the “ASC / TRAC not available” cleaned my throttle body and it went away… and when that happened I got the “P” something code for throttle position sensor…
Any help would be great…
Joined: Jan 2008
Posts: 2,961
Likes: 89
From: 33498
RE: XK8 Throttle Problems
If you got a p0121 then it is def a throttle problem.
Before replacing throttle, disconnect tps and look at pins. If you gave gold pins on tps and tin pins on harness side,
this could be the problem. You need to replace the tin pins with gold ones to correct concern.
Before replacing throttle, disconnect tps and look at pins. If you gave gold pins on tps and tin pins on harness side,
this could be the problem. You need to replace the tin pins with gold ones to correct concern.
Thread
Thread Starter
Forum
Replies
Last Post
99xk8guy
XK8 / XKR ( X100 )
12
Sep 29, 2025 10:51 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)