Stall engine and rough idle in S80
Hello, I have a Volvo S80 T5, manual transmission, 2000 model. I noticed that it stalls and goes off when in motion, especially when I decelerate and want to start accelerating. There is also a rough idle when the AC is on. It's also consuming a lot of fuel. The airflow meter is ok. The fuel filter has been changed but this problem still persists. I will appreciate it if any one can advise on what can be done to resolve this problem.
I have been doing some research and found that my model does not use a fuel pressure sensor but it uses a fuel pressure regulator, can a malfunction of this regulator cause this problem? Where is the fuel pressure regulator situated in my car?
Can a malfunctioning power steering pump cause this problem?
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