Recently, my car was revving sporadically (like up down up down). So, everyone told me it was a bad TPS sensor. Well, I replaced that thing (I'm pretty sure it's on correctly because I've seen what happens when it isn't) and although that problem went away, the other problem I had with it did not -- the car would randomly stall out at low temperatures. Not realizing that it only did it at cool temperatures- I replaced the MAP sensor. Once again, although the car runs better, it still stalls out randomly (much to my dismay). Once again, I commenced research. Found some sources saying that the EGR valve needed cleaned. Did that (with some basic cleaner). I still have the problem with the car stalling and sometimes not starting at cool temperatures. What's going on?


Edit: Once the car does start it seems to run fine.

 

not meaning to double post, but i think i solved my issue (for anyone having similar problems). i took the throttle body off and there was some MAJOR buildup on the gasket on the area for the IACV. the actual IACV wasn't really dirty, just the gasket in that area. so me and a friend made a new gasket and cleaned the whole throttle body and the car has yet to repeat the problem or anything resembling it (but only one day has passed).