my gf has a 1993 escort wagon 1.9 auto... one day about a week ago she started it up and was letting it warm up and it shut off on her.... when i got home from work i tried to start it and it started but with a rough idle and ran for maybe 2 minutes and shut off and couldnt get it started again.... so i did all the steps i had to to retreive the check engine light codes and for a while there i was getting a code 331 which does not exist.... then i grounded the sti jumper wire and got a few other codes but im not sure if im getting the codes out correctly cuz it goes kinda fast but from what i think i got is 116 which is the coolant temp sensor and a code 123 which is for the tps... now i let the car set for about 2 days and jumped it and it ran fine but if you reved it up past maybe 2000 rpms and let off the throttle it would shut off but fire right back up... i checked the spark and its not a bright blue its like a yellow color but the car is also cranking slow even while its being jumped becasue the starter is starting to go... but it the pulley for the ac is also spinning and the bearing for it sounds rough and could also be putting restriction on the starter.... i replaced the coolant tems sensor and still nothing..... i am not sure where to go from here plz help

 

could be a mass air flow sensor

 

see i was thinking maybe that but i dont exactly got alot of money and i nkow they aren't cheap and i dont want to buy one and then thats not it you know... i was thinking if i unplug it and if nothing changes maybe it could be that.

 

yea you can unplug it if no change thats it but in some cases i have seen the car run better when it was unplugged