Idles better after car wash
#12
Join Date: Oct 2016
Location: St. Clair County, Michigan
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I'm thinking it's something 02 sensor related. Under wash cooled exhaust enough that a normal lean condition that has been causing rough idle, was altered temporarily, enough to cause max fueling for a few minutes, then exhaust temps start normalizing and lean fueling condition returned. Do you have a scan tool that reads live data? This could possibly give you an indicator as to what is happening. Watch short term fuel trim monitoring. The issue may be minimal enough that it's not setting a hard code.
The following 2 users liked this post by The Deputy:
SundayFunday (09-12-2022),
XRAD (09-15-2022)
#13
![Default](https://landroverforums.com/forum/images/icons/icon1.gif)
I'm thinking it's something 02 sensor related. Under wash cooled exhaust enough that a normal lean condition that has been causing rough idle, was altered temporarily, enough to cause max fueling for a few minutes, then exhaust temps start normalizing and lean fueling condition returned. Do you have a scan tool that reads live data? This could possibly give you an indicator as to what is happening. Watch short term fuel trim monitoring. The issue may be minimal enough that it's not setting a hard code.
The following users liked this post:
Sandman614 (09-12-2022)
#15
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