Greetings fellow Volvo lovers.<p>I recently purchased a 1994 850 t5 back in november of last year off of my father. Great car, fast, fun, "usually" reliable. Reason being for usually is that ive been encountering an extremely annoying issue where the car seems to loose all power, wont turn off just wont accelerate for a random amount of time. On more random occasions the car will actually just shut off, sadly in the middle of an intersection once. <br>Quick fix however, simply turning the car off then restarting it works.<br>Sadly i have been unable to find a stable environment where the car will reproduce this issue at my will. Rain, snow, sun, hot, cold, its done it in all conditions.<p>Ive put probaly over a grand in parts trying to correct this problem however to no avail. If anyone has any ideas or suggestion there warmly welcomed.<p>Heres a list of what ive replaced:<br>Mass air flow sensor, distributer cap, rotor, spark plugs, spark plug wires, ignition switch, fuel pump relay, fuel pump, crank position sensor,<br>coolant temp sensor, thermostat, throttle position sensor.<p>And does anyone know if 850s have a altitude pressure sensor?