Quick update. new throttle body fixed the issue. Don't quite understand it but maybe I got some carb cleaner into the electronic portion of the throttle body? It's running great now so I guess I won't put too much thought into it

Took to an experienced Volvo guy who serviced the Volvo I had years ago. He said it is the throttle body so I'm going to replace it. I'll update after that comes in.

“… What were your symptoms that led to you replacing the throttle body? Similar to what I'm seeing? Or did the throttle body not respond at all…” It would be running fine then suddenly we would get the “Reduced Performance” message and lose almost all throttle response. The car would hardly get out...

the code is indicating the ecm isn't recieving throttle information. I wonder if a throttle sweep test can be performed in vida whilst the engine is running. You could try a drag test on the throttle plug contacts, or just cut it off and install a new plug. Its a lot cheaper than a new thottle body...

I (needlessly) replaced the Bosch throttle body in the 2005 S80 2.5T that we used to own. It was absolutely plug-n-play. In our case the problem boiled down to the ECM connection. Once it was removed and re-seated the car ran fine. What were your symptoms that led to you replacing the throttle body...

I (needlessly) replaced the Bosch throttle body in the 2005 S80 2.5T that we used to own. It was absolutely plug-n-play. In our case the problem boiled down to the ECM connection. Once it was removed and re-seated the car ran fine. Interesting. Yeah I'd hate to replace a $250 part if it's not the i...

Tested it again. With key on you can hear the hear the throttle body go through some sort of start up sequence. Moved the wire all around and nothing changed this. Had my wife press the pedal as I listened to the throttle body while moving the cable around. Still no change, sounds like it operates p...

While testing you may have bent the harness around in a way that it temporarily made full contact. You might even try the test again with an assistant operating the pedal while you bend the harness every which way - maybe not TOO violently. Good idea. I will try that today. Do you know if these thr...

Did you unplug the throttle body from its harness? Its a known problem , the contacts can become damaged when disturbed. Some dealerships pigtail a new connector on to prevent comebacks. I did unplug it when I removed the intake manifold. I would think that if there were an issue with that plug tha...

Have a new to me 2006 XC70 that is giving me problems. Started with a burst coolant line that is mated to the PCV system. I removed the intake manifold and replaced that line along with the entire PCV system (bought the kit from FCP Euro) and any vacuum lines that were under there. I also cleaned th...