1991 regal

1991 regal 3800gs over 200000 miles---my car quit on me yesterday sputtering at first i pulled over--checked the codes 23& 34-i bought a new mass air flow sensor --the same problem exits -the car sometimes starts -i took the throttle body off removed all sensor put it back on the car started like new but later dies now its hard to start --if i do get it started it dies-seem like it wont idle or getting enought gas do i have a sensor problem--also i replaced the fuel pump straner and filter.


thanks

23Inlet air temperature sensor signal showed an air temperature of -31� F for 0.4 seconds

34 There was no MAF signal for over 4 seconds while engine was running.

The IAT showing -31 degrees will throw off the air/fuel ratio, which could be part of your issue. I would also check the wiring to both the MAF and IAT to be sure they are not corroded or broken. On the MAF, did the code come back after you changed it, and/or did you clear the codes after replacing it?

the car starts fine -than about 5 to ten minutes its dies and hard to start again--last monday i tried to clear the codes(postive battery post) check engine light was on as soon as i started car--now these codes was 22 23 and 41---i will clear codes monday.

thanks