Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Did you disconnect the battery before replacing the belts and balancer?
Ok, and there wasn't any kind of issue with the car idling prior to replacing the drive belts? None at all?
Just trying to think what would have happened to cause this, I have replaced lots of belts without a problem. Did you do anything with the air filter or anything while doing the maintenance on the car?
Totally understand, did you use a Nissan balancer or aftermarket?
Ok, couple ideas, first, it is possible there is an issue with the mass air flow sensor. Try unplugging it and see if the car will idle. If it will, then it's the problem. If not, the only other possible issue I can connect with this would be the crank signal sensor that is bolted to the timing cover. This I would expect to throw a code. I actually have used 1A several times for my 02 Maxima without any trouble, but maybe there is some difference there.
As for the maf sensor. It can go bad and not store a code. All it has to do is send the wrong info to the computer and it can mess things up. The computer isn't smart enough to know it's getting the wrong info, so the light only comes on or codes are only stored when the wiring is bad or the sensor is burned right up. This will cause the code, otherwise the computer is just making the mix based on the input.
These are the only things I could see causing the problem. Yes on the vacuum line, however there shouldn't be any there that would just come off that easily.