I recently had some rough idle on my 2005 Acura TSX that wouldn’t go away. It usually goes away after I do an oil change but it has been persistent for over a year. I decided to do some maintenance on my PCV valve and I am very happy with the results.
Other variants of the Honda K series engine do include an EGR valve that you need to clean. In this case the K24 on the TSX does not have an EGR valve, only the EGR plate.
The part number for the OEM PCV valve for the TSX is: 17130-RBB-A01
Be careful buying counterfeit OEM parts on eBay.
It’s best to buy it from the dealer. Here is a link to where I bought mine from the dealer online oemacuraparts : https://www.oemacuraparts.com/oem-parts/acura-pcv-valve-17130rbba01?c=bD0xJm49U2VhcmNoIFJlc3VsdHMmYT1hY3VyYSZvPXRzeCZ5PTIwMDUmdD1iYXNlJmU9Mi00bC1sNC1nYXM%3D
First Generation ACURA TSX OEM Service Manual
https://drive.google.com/file/d/1yuT-biqsgy25POY20aNKwIpMJEROFSCo/view?usp=sharing
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What manual do you use for this replacement?