My (17 year old) grandson Jesse ran his (lowered) 98 Jetta through ford in a shallow creek (twice) and on the way home it started running bad. He limped it to my house where it died. I'm tired of looking at it and want it gone, so I guess I have to fix it. He and some of his friends "worked" on it and concluded that the engine was blown because it got water in the intake. I don't know what the actually did to try to "fix" it, but I'm sure I'm dealing more problems than it had to start with. The only thing I know for sure is that they had removed the air filter element because it was soaked with water and sprayed a bunch of starting fluid in the intake.
So, after it had sat there a few weeks, I went out and got it started . . . had to hold it at about half throttle to get it to start, and it ran like crap . . . but at least it did run. I plugged in my (super cheap) scanner and got the following codes:
P0171 Volkswagen - System Too Lean Bank 1
P0341 Volkswagen - Camshaft Position Sensor
P1476 Volkswagen - EVAP Control System LDP Malfunction/Insufficient Vacuum
P0137 Volkswagen - O2 Sensor Circuit Low Voltage
P0141 Volkswagen - HO2S12 Sensor Heater Circuit
P0103 Volkswagen - Mass or Volume Air Flow Circuit High Input
P1240 Volkswagen - Injector Circuit Open Cylinder 4
I cleared the codes and spun it over a few times. The CEL came right back on, but the only code it showed then was the camshaft position sensor.
I got a new Mass Air Flow unit off eBay and a Camshaft Position Sensor from Autozone. The Mass Air Flow unit was easy . . . but where in the heck is the Camshaft sensor? I've looked all over the internet and it seems that the newer 2.0 sensors are behind the timing belt and the pre-98 are in the distributor. There is some kind of sensor screwed into the head above the water outlet flange . . . my guess is that might be it, but it doesn't look the one I got from Autozone. The one they gave me sticks in a hole and has a little flange sticking out with a bolt hold in it. The sensor in the head appears to be threaded. Any advice will be greatly appreciated!