240 ,
It is behind the glovebox,quarter panel near the fuses from memory , the connector is dark blue , strange oem bullet type connector, lots of sensor signals go through it (it is square shaped). if i could find the lh2.4 greenbook it would show all connectors,it is not shown in the generic schematic. The quickest so;ution is to measure the voltages at the sensor and then at the lh 2.4 connecor wires . i use a bobby pin with a jumper . use a good earth .If the voltages differ markedly there is your problem .Remember all sensors are analog so voltage levels matter and are important to the digital ECU , it determines injection.. LH 2.4 also has learning and adaptability functions (1st gen)Also has decelleration fuel cuttoff that saves brake pads -you will note a big drop in temp going down long hills as injection quantity is very small on decell.You do know about the code reader to read codes ? Volvo owners uk has a great article on it .Please note code system is rudementary -it can point you where to look . There is also a function to pulse injectors and air valve to hear them working ,not bad for a 89 onwards car.