Could an EGR valve be the reason that the car still misfire? Because I changed spark plugs and coils.
have the same problem?
Wednesday, January 4th, 2017 AT 2:32 PM
Yes, an EGR valve that does not close when it is supposed to can cause misfires. If you need more direction in finding the cause of a misfire, you need to add a real lot more details and information.
Wednesday, January 4th, 2017 AT 2:35 PM
You will not get a dead cylinder misfire but you will see rough idle problems, normally a faulty EGR will give a check light. I would do a compression test and check for vacuum leak and ensure that the injectors are okay first.