Here is the British site that has wonderful diagnostics for checking the ECU. There even exists on there an interchange database and hacks to bypass common problems. http://www.volvoclub.org.uk/faq/EngineFIComputer.html Hope that helps! Also have you run the OBD codes from the inboard diagnostics? T...

Three things to check that I can think of. #1 Fuel pressure regulator, it's that the end of the fuel rail. If when you pull the vacuum hose it smells of fuel, it's gone bad. #2 one of the two fuel pumps or the fuel pump relay. The relay is below the glove box knocker cover its white. Take it off, op...

My 240 started stalling as wi as pulling away from lights after 30 min of driving. It has gotten progressing worse. Now I can't even make 10. If I sit and let it cool for a bit was 15-20 min I could then restart and get enough run time to get to my destination. It will always start and run for a sma...