T means that your fuel system has reached its limit of compensation for the fuel system. As the engine is driven if the fuel system computer sees that the fuel mixture is too rich or too lean it begins to compensate by increasing or decreasing the amount of time the injectors are on. When it reaches its limit it throws the code. It is usually a vacuum leak or bad oxygen sensor that sets the code
SOURCE: 2000 Volvo S80 T6 scanner code P0237
Actually I believe the code has something to do with fuel.. the P0237 means Powertrain (P), the 0 means its a common code throughout all vehicles not manufactur specific and the 2 means Fuel , the 37 is the specific code and says the problem usually that i dont know off hand but if theres like a lack of power or you know this is creating a misfire i would start out by checkin fuel pressure [pressure, pump, rails] and then fuel delievery [injectors].
hope that gets you started or an idea maybe
ps a turbo is something you usually install yourself so the car shouldnt be equipped with a turbo sensor...i dont think that exists
SOURCE: Fuel Relay
It is in the passenger compartment relay box under the left side of the dash. Along one edge there are 6 rectangular relays grouped 2 together and 4 together. The fuel pump relay is second over from the gap between the 2 groups of relays. My diagram marks it as CMI 12.
SOURCE: 1999 Volvo S80 T6 Engine Misfiring
some weeks ago i had similar problems with my 2001 s60,i cleaned the etm and fitted a front o2 sensor ,its now idling at around 800 and driving fine.You could try changing the o2 sensor-but remember the earlier etms are troublesome and it may be a big part of your problem,the cleaning can work in only some cases
SOURCE: volvo s80 t6 1999 sunroof not operating, no noise
no the sunroof has it own module it is part of the motor
SOURCE: fuel door does not open
I can't promise that this will apply to your car, but in my Audi, there is a manual release cable in the trunk, and your car may have one too. Go into the trunk, pull back the trunk lining on the side where the gas filler door is and look for a pull cord. Often the European cars have this feature since their gas doors are unlatched electronically, and this serves as a backup in case the electronic release fails. Take a look and see if you have this feature - I'd almost be surprised if you don't.
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