Hi, Last fall while stopped at a light, the car stalled (1986 Conv). Started up with Service Engine soon light on. Idle was also rough after that. Read out EC (was 34). I replaced the MAF sensor, cleared the code. Service Engine soon light returns w/EC 34. When I unplug the MAF sensor, clear the codes I get an EC 33 which would point to the MAF sensor. Any suggestions on what to do next?