My '90 240 is having a rough few days. Started hesitating whenever I would stop at a light/sign, then would stall. Occasionally would start back up, sometimes would have to wait 5 minutes or so. Had already changed plugs, wires, rotor, distributor and fuel filter. Brought it to a garage to have code read, ended up blowing $400 on a "carbon flush" for the injectors, fuel rail, etc. Had injector o-rings replaced and vacuum leaks repaired. Throttle body also cleaned. Had no problems running, for 5 minutes anyway, and back to same hesitating/stalling. Garage also told me that the fuel pressure was low, though not an immediate fix. However, replaced both fuel pumps this weekend and also checked fuel pump relay (this was fine, soldering was intact with no indication of failure). Could also hear the main pump switching on/off w/ ignition. Garage isn't helping me at all and I'm at a loss as it's not starting consistently. Turns over nicely though. Had it started for maybe 5 minutes yesterday, then it stalled as I placed it into gear for test drive. HELP before the wife takes my car away!