The problem has just started this week. Although a rough or low idle has been quite persistant since i bought the vehicle. I have had the throttle body cleaned, Maf cleaned, new plugs and wires, and coil . This seems to happen wheher the engine is hot or cold. The car will either stumble or flat out stall when shifted into park or nuetral. I was assuming the next step was cleaning the idle sensor but I would like to hear your take first.

 

may try the throttle position sensor as that can cause stalling when it goes bad.