MY CAR WAS DYING AT STOPS UNLESS I HAD THE A/C ON. SO I HAD IT CHECKED AND WAS TOLD IT NEEDED MASS AIRFLOW SENSOR. RELPACED AND DIDNT HELP. NOW IT IS WORSE. HAD COMPUTER HOOKED UP AGAIN AND CODE SAID SYSTEM TOO LEAN. WHAT CAN I DO? DONT HAVE MONEY TO PUT IN SHOP, HAVE TO DO IT MYSELF.