October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
When Compression Testing
Courtesy of VOLVO CARS OF NORTH AMERICA.
- Disconnect engine speed (RPM) sensor before carrying out a compression test.
- The diagnostic trouble code (DTC) must be erased when the engine speed (RPM) sensor has been reconnected.