Hi, I had my 4 cyl 96 jetta gls 4 door in the shop for a check engine light, bad speedo, bad fuel guage. Swapped instrument cluster, said that check engine lite was on because different reading from speed sensor and speedometer. Good. Now the speedometer works, the gas guage is acting almost normally, think it's a bad sending unit, but doesn't bother me that much. Took it back for the check engine light, they got a P0133- slow response 02 sensor bank1 sensor1. They found a bad crankcase breather hose and replaced it. They reset the lite, and said that they would have to dig into it a little more if the light came back on. The lite came back on. I have not (yet) read the 'new' code, but suspect it will probably be the same. I was considering buying an inexpensive ODB2 reader, but I don't know whether to buy the crummy $40 simple reader at Harbor Freight, or to spring for the $53 item that I can plug into my laptop via USB. In any event, I can't really afford to pay the mechanic to swap out everything under the hood piece by piece, and was hoping to replace the 02 sensor myself, yet haven't the foggiest where to locate it. I'm used to working on older datsuns and nissans, and this engine is very foreign to me. it has AC, emissions xyz, and power whatever. My old truck just had a wind-up frog on a string.
Please direct me on which OBD2 scanner you would purchase, and where I might find the 02 sensor.
Directions like 'against the firewall on the drivers side there is a rubber hose' will be of more use to me than 'the left side of the egr emissions control module...' -Thanks! Nice website, by the way.