Can any one tell me the wiring codes on both upstream and down stream o2 sensors? The wires I see on one o2 sensor are a total of 5 leads-their colors are black; blue; yellow; white; grey. On the other o2 sensor (exhaust) has a total of 4 leads, their colors are green; pink; white and black. I'm trying to diagnose the o2 sensors to try and find out if its faulty wiring some where or I in fact DO have a bad sensor. My question is which wire would I hook up to using a multi meter to basically see what the computer is seeing? Thank you.

Can any one tell me the wiring codes on both upstream and down stream o2 sensors? The wires I see on one o2 sensor are a total of 5 leads-their colors are black; blue; yellow; white; grey. On the other o2 sensor (exhaust) has a total of 4 leads, their colors are green; pink; white and black. I'm trying to diagnose the o2 sensors to try and find out if its faulty wiring some where or I in fact DO have a bad sensor. My question is which wire would I hook up to using a multi meter to basically see what the computer is seeing? Thank you. 2 Answers

I went to try and get this car smogged but was unsuccessful because of a "failed OBD system checks" -my question is what is this the Machanic is talking about and how might one go about correcting the problem? What could I check myself or diagnose myself to get this failed device and working functional one? What would I have to buy to correct this issue and about how much would it cost? Thanks for your help. ~Chad~ 15 Answers

I could upload a copy of the paperwork if needed or any other information other than what I've provided.... vehicle identification number: kmhdn46d44v891036

Ok i had bought a 2004 Hyundai tucson v6 and it had ran ok for a few months but when i bought it i noticed the engine light is on so i took it to auto zone so they can read the codes for me and they said i needed 2 O2 sensors and 1,3,and5 was misfiring. But it still ran fine ,so i said don't fix it if its not broken.lol. but ishould of fixed it because now it is running bad. It starts and everything but when you put it in gear it wants to die out and when pushing gas pedal it runs rough or comes close to dieing out . So i checked the sensor the messures the air and gas , put it on my meter like it's says on YouTube and it was fine. But really stuck on what to do ,don't have much money to go buy all kinds of parts and it doesn't fix the problem. so if there is any body out there that might know what is going on please help me figure this crap out . Thank you so much and God bless everyone 2 Answers

Ok i had bought a 2004 Hyundai tucson v6 and it had ran ok for a few months but when i bought it i noticed the engine light is on so i took it to auto zone so they can read the codes for me and they...

I have a 2003 Hyundai Elantra with 65,000 miles and i just recently found out i need a front right wheel bearing and I have 2 evap leaks. (2 codes came up). I was quoted $450 to fix both issues including a state inspection. Is this a serios issue with my car that has to be fixed right away or something i can fix over the next few weeks? Is this a good price for the problem? Is there something i can do to fix these issues for now that could be a cheaper option? 1 Answer

I have a 2003 Hyundai Elantra with 65,000 miles and i just recently found out i need a front right wheel bearing and I have 2 evap leaks. (2 codes came up). I was quoted $450 to fix both issues includ...

Hi I have a 2001 hydyia elantra, it's manual and today I've had to replace the batter. my main concern is when I was driving my car it made a little noise then my car just stop moveing. the engine was still running and was fine but the car would just rev up and did not move does this mean the whole clutch is bad or maybe the clutch plate?? And when I let go of the clutch in gear it did not stall out like it should have it didn't even move or rev just sat there please help me asap!! 2 Answers

Hi I have a 2001 hydyia elantra, it's manual and today I've had to replace the batter. my main concern is when I was driving my car it made a little noise then my car just stop moveing. the engi...