So the Jetta started running rough, then stalled after starting. Couldn't drive it home so I had to tow it. Got to the house and read codes. It gave me P0135, P0171, and P0321. I researched and saw that the only code of these three whose symptoms included stalling was P0321, so I replaced the Crankshaft Position sensor. Tried starting it, and it wouldn't start at all. I kept at it for a while thinking it would catch, but after 5 minutes the battery was too low to crank. I tested the old crankshaft sensor, and had resistance of about 900 ohms, so it was in range. For giggles, I pulled the new one and checked it, also in range. I put one of them back in, and proceeded to scratch my head. I need to do a very close hose inspection, but there are no obvious tears or breaks. Any recommendations on where to go from here would be much appreciated.
