3503 misfiring of s60 volvo 2003
3 Answers
apbimmer98 answered 4 years ago
I'm gonna need more details to help you. What's going on with it, just a misfire? Do you have any other codes? See here for more details on this code: https://www.dtcdecode.com/Volvo/ECM-3503
I have same issue. Just this code when scanning and engine had massive misfire. Already changed plugs.
apbimmer98 answered about a year ago
Check for vacuum leaks and fuel pressure. This is a random/all cylinder misfire code, so it's more likely to be something that affects all cylinders.