Hi All! Long time lurker, first time posting. Just want to say how helpful these forums have been. My 2007 Z4 got the big R sticker at the garage this week because of these codes: 2C9E - Lambda Probe Heating in front of catalytic converter - input signal 2C9F - Lambda Probe Heating in front...

Hi All, I need some community help on this one. I've done 98% of all the maintenance work on my X5 since we purchased it in 2009. First time that i've been stumped. Car was running fine, but had a check engine light due to "catalytic converter error". I thought I would try replacing the...

Hey there, im looking for USED o2 sensors (post cat) that you are wanting to throw away. need them for something im trying to do. thank you!!! (its alright if they dont work, in fact its better)

Thanks guys for responding to my original question. I ordered the fuel filter and replaced it. my mechanic said that it was really dirty. the car feels lighter and the initial hesitation is pretty much gone. Also replaced the Air Filter, the one in the car was charcoal black, really in a bad...

I know i need an O2 sensor my brother is a mechanic and he told me he wants me to learn more about my car so he told me to find and install a new O2 sensor and he will check it the car is a 1987 bmw 535i where is the best place to get a cheap O2 sensor Can i use a universal one how to install...

I've been having ALOT of problems with my '95 540i, so I was reading the Bentley manual and I came across the On board Diagnostics System, I performed the test (I thought it was pretty amazing) and I got the code 1222 which is the Oxygen Sensor Lean/Rich Detect, so i'm guessing my oxygen sensor...

My '87 325ic starts funny. Sometimes it hesitates. Patting the gas once helps. It grinds much longer if you put your foot on it. Seems ok after it's fired up. I'm thinking of replacing the O2 sensors. Is this an easy thing to do? Are there any must-know tips before I begin? A special...