Been having a stalling issue for a month now, and only at idle and sometimes at stoplights. If you press on the throttle before it cuts out you can stop it from stalling so i put in a new iac valve. Issue is better and stalling less. But still stalls. But when the engine rpms drop under 500rpm or right before it stalls it seems to catch its self and rev up. When it does stall it starts right back up. Issue happens the same amount when cold or hot. Any thoughts? Currently at 288k Miles.

 

Did you clean the throttle body when you changed the IAC?

 

yes i did. By any chance would you know what should the map sensor be reading at idle?

 

MAP is manifold absolute pressure. Don't know if yours reads in KPA, or mm of HG, or psi though.

Here is a nice chart listing values. Makes for easy conversion. Figure at idle, your engine should produce on average, about 18"s of mercury. (in of HG.)

 

i do not see a chart unless its not loading on my end

 

It's a PDF file. Though, it would have been nice had I included the friggin' link..... Sorry 'bout that.