Looking for some advice. Have a 2000 LC with 198k.
Two weeks ago on a cold day the CEL & VSC Trac On/Off came on, truck went into limp mode and I got a P1120 code. Issue went away on a warmer day, and my thought was the throttle body needed cleaning or a new APPS sensor.
Cleaned the throttle body, but on another cold morning it went into limp mode again, code pulled was P1121 this time.
I replaced the APPS sensor with a new one and that has seemed to alleviated the LC going into limp mode on cold days, but now I have a non stop clicking noise, it sounds like it is coming from the throttle body itself. Getting some small popping from the exhaust as well at idle.
Im not getting any CEL. Wondering if the next step is a full throttle body replacement? Here is a video with the noise:
IMG_4049.MOV - https://www.dropbox.com/s/zdq3b4bkbauea1m/IMG_4049.MOV?dl=0
Thanks for any help.
Two weeks ago on a cold day the CEL & VSC Trac On/Off came on, truck went into limp mode and I got a P1120 code. Issue went away on a warmer day, and my thought was the throttle body needed cleaning or a new APPS sensor.
Cleaned the throttle body, but on another cold morning it went into limp mode again, code pulled was P1121 this time.
I replaced the APPS sensor with a new one and that has seemed to alleviated the LC going into limp mode on cold days, but now I have a non stop clicking noise, it sounds like it is coming from the throttle body itself. Getting some small popping from the exhaust as well at idle.
Im not getting any CEL. Wondering if the next step is a full throttle body replacement? Here is a video with the noise:
IMG_4049.MOV - https://www.dropbox.com/s/zdq3b4bkbauea1m/IMG_4049.MOV?dl=0
Thanks for any help.
Last edited:
