I recently had my 07' S80 3.2 die on the highway with the reduced engine performance warning. Tried to restart the car which it did but runs very rough and has no throttle response. I had the vehicle towed home where I scanned for trouble codes and came up with P1589. I searched the forum for any similar codes and have come up empty. Does anyone have any experience with the P1589 code and can point me in the right direction to getting this issue fixed before having to resort to the dealer? Any help will be greatly appreciated.

 

that code is related to the throttle position sensor. Google "Volvo P1589" and you'll get plenty of hits.

 

Yeah... That's what I turned up also but apparently it doesn't apply to this model as the sensor is all part of the throttle body which I replaced with no effect. Thanks for the info though.

 

did you check with a dealer if any reprogramming is required for your replacement throttle body?

 

I have a very similar REP problem with the '03 S60, T5, AWD , 140K miles
REP = reduced engine performance .
A week has passed and ? .
I have read that throttle bodies are plug and play (newer ones)
And the throttle body may not be the problem .. there is also the plug in connections...corrosion problems ...
Do you pressure wash your engine as I do ? I have never had this problem with the Saab 900 ...luck or better design ?..