rough idle, not MAF sensor. 1999 S70 GLT
 

Hi all,
I've researched this issue and found out it could be a dirty MAF sensor, so I disconnected the MAF sensor and started the car but the idle remained rough. I've read that cleaning the throttle body helps so I got CRC throttle body and air intake cleaner but on the bottle it says not to use on turbocharged engines? And I have no idea where the throttle body on the S70 GLT is anyway...
What else could it be?

Do you have a CEL?

Nope. But speaking of, the lightbulb light turns on whenever the brake pedal is stepped on :confused:

That means you have a brake light bulb out.

You have a '99 so you may have a bad throttle control. They go out a lot in those cars. If you do not have a cel, you are likely not missing.

What do you mean not missing?
And thank you for the brake light answer, very helpful :o

Missing means that one of the cylinders in your motor is not firing. That is the most common cause of rough idling. You have 5 cylinders and if 1 of them is not firing, it will cause a rough idle. How many miles does the car have on it?

Approximately 120k.
I might also add that the car dies every now and then while driving, usually during stops.

https://volvoforums.com/forum/volvo-...-stalls-55928/

In that case, try this first. Fuel pump relay.