Hey all, new member but been lurking for a while. Been searching the forums for my problem and although there's many good ideas, none have helped. Past couple months my s40 takes 5 or 6 seconds cranking to start sometimes, other times starts right away. But now it will crank, no start unless I give it gas and hold the pedal above 1k rpms to keep the engine going. Cel p0128 for coolant temperature below thermostat regulating temperature, this has been there for 3 years and hasn't affected drivability. P0420, P0455 and P0107. I've swapped out both map sensors, the FPR and cleaned the IACV. Any ideas? Appreciate any input.

 

Keeping my fingers crossed for some advice. This is my only car and my family needs me to fix it.