My check engine came on....i got code 0303 Front Left Heated O2 sensor...did some research on changing i found this pic... Can you guys just confirm that i will be changing the right one(Front Left Heated O2 sensor)....Thanks

I have a 95 GLE


http://i67.photobucket.com/albums/h2...2222222222.gif

 

yes.. LH means left hand.

 

i concur

 

quick opinion....i went to get this part at a local auto place...i started to ask the guy about this problem, i told him it happend twice(my check engine light on)...once when on the highway, and just monday after i started my car after refueling...he told me that its not worth getting this...its just the gas cap is not thight....JUST TIGHTEN YOUR GAS CAP.....WHAT IS YOUR GUYS OPINION?

 

are the fronts even heated? I thought only rears were...fronts have 3 wires, rear has 4.

 

I received code P0133 0409. Is it the LH or RH O2 sensor. I have a 99 Cali spec. Anyone know? Thanks.

 

how about you check for yourself with the CEL decoder posted in the stickies.

 

It is clearly not your gas cap if the code is for front bank O2 sensor. Replacing the front O2 sensors is up to you. The ECU will default to the rear O2 sensor and the car will run fine. Don't buy them from autozone they are over priced check online. I recommend universal 02 sensors fronts are 3 wire (i know i know they are cheap though). You can try cleaning he O2 with a wire brush that has given me 2-3 months of check engine light free driving. The thing I have noticed about autozone the guys who work there know a lot about cars especially american cars but when it comes to a newer car with modern technology that isn't a 1988 F-150 or a 1994 Olds Cutlass they are clueless.

 

Yes, I did that. Doesn't say. Had to use wikianswers to find out what the p1333 code meant. I just wanted to find out which sensor it is. I know it's the front, but I'm not sure if there are 2 front 02 sensors for a cali spec and if so, which one is it.