high idle on cold start post drive belt replacement
#1
Instructor
Thread Starter
high idle on cold start post drive belt replacement
2006 CS Ti, 121,xxx miles. Replaced the serpentine belt which requires disconnecting the throttle position sensor. Now when I start it cold the idle is 1000rpm. It settles to 500 rpm after a minute or so once it starts warming up and driveability is the same as before. Is there a relearning that needs to be done for the TPS?
#4
RL Community Team
Rennlist Member
Rennlist Member
Might be a coincidence between the timing of weather now getting cooler and the belt service you just did. If it's cool enough now to trigger the warm up protocol, the car will start and runs at a higher idle to warm the cats before dropping to a normal idle.
#5
Instructor
Thread Starter
I've been thinking exactly that. This morning it was 75 and the idle was ~500rpm on startup. Previous times it may have been around 60 or so. That said, when I first started it post work it was in the evening and still quite warm. Guess I'll know for sure when the cold comes back.
#6
#7
Instructor
Thread Starter
Petza914 is correct on the temp being the cause for the higher idle. Yesterday morning was below 60F and the idle was 1000 rpm for a minute or so until it warmed up some. Above 70F it appears is the cutoff for the cold idle function. So, Nodoors, I do pay attention.
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#8
RL Community Team
Rennlist Member
Rennlist Member
Glad we fixed it
#9
I wrote COLD start in my first response and Petza was nice enough to further elaborate.
If you want to continue to take yourself so seriously do so, but the only point you have made by posting back your curt responses is that you are ungrateful of others donating their time and knowledge to help you solve a problem. Thanks for letting me know it is not worth my time to try to help you again in the future! ;-)
If you want to continue to take yourself so seriously do so, but the only point you have made by posting back your curt responses is that you are ungrateful of others donating their time and knowledge to help you solve a problem. Thanks for letting me know it is not worth my time to try to help you again in the future! ;-)
#11
Instructor
Thread Starter
I wrote COLD start in my first response and Petza was nice enough to further elaborate.
If you want to continue to take yourself so seriously do so, but the only point you have made by posting back your curt responses is that you are ungrateful of others donating their time and knowledge to help you solve a problem. Thanks for letting me know it is not worth my time to try to help you again in the future! ;-)
If you want to continue to take yourself so seriously do so, but the only point you have made by posting back your curt responses is that you are ungrateful of others donating their time and knowledge to help you solve a problem. Thanks for letting me know it is not worth my time to try to help you again in the future! ;-)
As for being grateful to others for their help I was. If you never want to help me with any future problems that's fine. Thanks for letting me know you thought I was being a jerk.
Tom