i pulled the codes 21,24,28, and 31:(

[grindin8o8]

So the codes are
21-main o2 sensor
24-maf sensor??
28-main o2 sensor
31-maf sensor??

if my maf sensor is broken wouldn't it be fking up my o2 sensors as well?? are these codes all connected somehow?? could it also be my iacv?? i had idling and stalling problems about a month ago so i cleaned my iacv and it ran great for 1 month. now today my car starting idling high on cold start ups and sometimes it stays at a high idle and usually when its at normal operating temp, the rpm starts to drop until eventually it hits zero and stalls. I have a feeling all these codes have to do with one another or is my ecu fk up. help please. anyone have extra parts for sale??

 

[grindin8o8]

any help??

 

[Drewpee]

Hi, looking at the wiring diagram they seem to share a common grounding point ( right side rear cylinder head). Try cleaning ground contacts and if that doesn't work check for broken wires (with multimeter to start with).
Hope this helps.
Andrew

 

[williamb82]

if the maf is bad, itll be sending the wrong amount of fuel to the engine and can cause the o2 sensors to foul out. might have to take them out and clean them once you get the maf fixed.