In the intake,after the air filter plastic
That is an open question. What part of the OBD system are you looking at?
MAP/BARO circuit low input
Its somewhat of a complex and time consuming job if you have never done it before...........
Switch the ignition without starting the car to "drive-mode" (number 2) and hold down the trip-button for a few seconds, turn of the ignition and wait for a few seconds and it will be gone.
YOU WILL NEED AN OBD II SCANNER AND THE LOCATION OF THE PLUG IS IN THE CENTER CONSOLE.(FRONT PASSENGER SIDE OF CENTER CONSOLE)
There is no speed governer, the car's powertrain control module is responsible for not only governing the speed, but making the car work.
You need an OBD II Reader (On Board Diagnostics) to plug into the socket located inside the console between the driver and passenger seats. If you do not want to buy and OBD II Reader then go to an auto parts store and ask them to read the error codes and reset the Check Engine Light..
For 1998 V70XC, AWD, my fuel filter is behind rear axle on right/passenger side. Co-located with the roll over valve.
Get in the car and locate the trip odometer reset button. Turn the switch on. Make sure it is in the trip1 or T1 position. If not depress the button to change from t2 to t1. Now turn the switch back off and depress the odometer button and turn the key to position 2. When the service light starts to blink release the button and turn the switch off. When you start the car the light should be out. It may take a couples tries to get your timing right in the press release and key functions
You can try disconnecting the battery for about 10 minutes. You can also go to any Autozone if you have one locally and they will reset it for you for free. or, you can simply turn your key to the II position on the ignition and your indicator lights should be on. then while still in position II push your trip set button and hold till service light starts blinking,now you have reset your service light for another 7,500 miles.
You need an OBD scanner or take it to your local Auto Parts store. Stores like Advance auto parts can usually read codes for you. The generic codes they read out can be converted to Volvo's OBD codes. The generic codes usually start with the letter P.