I have a Volvo 850 and have had this code for about 3 months, and didn't do anything because it wasn't affecting performance....just emissions if i am correct. Now, as of 4 days ago, i am getting hesitation during acceleration and it is very annoying. The car is running and im driving it daily, but sometimes i get jerkiness in the acceleration. I know there are a coulple parts that make up the secondary air injection system....how do i figure out which one to replace?? and what should i do?
YOu could have an injector that is clogging up so try a couple of tanks of premium gas with some injector cleaner in each tank.
Not knowing the year of your 850, Volvo uses Vidis coding for the computers and OBD codes are not valid. Take it to the Volvo dealer or a Volvo repair shop that has the new computer to read what your problem might be. I have an '00 S80T6 and it uses Vivis code instead of OBD.
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