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