How many times can you get the same CEL?

[babur]

I know that there are few threads regarding this issue but hopefully this is a little new... At start up, I've had quite a bit of smoke but went away after a few sec. But later, it started smoking like crazy (though would stop after 10-15 sec). The next day, when I was taking it to the mechanic, the car stalled and had to tow it. There was almost no oil left in the car! Clearly, it was the AOS. Of course, with all the tubes being brittle near the AOS, I had to pay $800 to replace the AOS and tubes, etc. Fine! At least the engine was not hydrolocked! I was happy that I got my car back but after driving may be 40 miles, when I came to a stop sign, I've had the same P1128 and P1130 I had before the smoke!!! I also noticed a hissing sound coming from the driver's side, like air is coming out of a tube. Other than that, it drives fine and there is no smoke whatsoever.

Why would I have the same codes again? Is the ECU still trying to learn the new data? Or may be the mechanic did not properly put one of the hoses or something like that?

Any insight would be greatly appreciated.

Thanks

Bob