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o2 sensor

  1. P0154 and P0421

    Problem Reports
    Hello all, I have an '03 GTS Eclipse. 184,000 miles. Automatic. A week ago my engine light popped on with P0171 and P0174. So i replaced some vacuum lines and tightened the intake and the codes stayed away for about 800 miles (I took the car on a trip to New Orleans). The light popped back on...
  2. O2 simulator

    3G Eclipse GT/GTS Specific
    Hello, I have an 03 GTS (pre-owned) with aftermarket exhaust headers and due to this i am missing an O2 sensor, I think its the one that would be for the cat. I know i have the 1st 2 sensors on the manafold but i might be missing the other 2. What i am interested in knowing is: can/should i...
  3. location 2000 gt O2 sensor bank 1 sensor 1

    3G Eclipse GT/GTS Specific
    I need to replace Bank 1 Sensor 1 O2 sensor. I have tried to locate it, but have failed. Can anyone explain to me where I can locate it.
  4. Ongoing o2 sensor issue, officially stumped

    Problem Reports
    If you have read my build thread you know that I've been haveing an issue with codes p0135 and p0141 heater circuit malfunction front and rear. I am completely lost as to what to do now. Here is the background: 2003 GS auto I swapped to a manual. I then had Wanted a GT make an auto to manual...
  5. Nightmare! Please help =(

    Problem Reports
    I purchased a 2004 Spyder GT about 6 months ago. Since then I have replaced the starter, Radiator, Spark plugs, Wiring, One O2 sensor, Two oil changes and pretty much all fluids topped off/changed. My problem right now is that when I start the car I hear a metal grinding sound. It sounds like a...
  6. im New HELP ME PLEASE

    New Members Forum
    Hi, my name is nathan a i bought a 2002 Mitsubishi Eclipse that had aftermarket parts pre installed on it, Super charger, headers, and exhaust. well my check ingine light is on. 1. Exhaust Leak 2. 02 Sensor (is there such thing as a high flow 02 Sensor? 3. Says my Catalytic Converter is acting...
  7. exhaust!!

    Eclipse Performance
    i bought an exhaust of egay and am tryin to instal it myself..i put it in but i dont know what to do with the o2 sensor that comes after the converter..theres no hole or anything for it on my new exhauste system and i jus cant let it hang there or jus unplug it..or can i?? Im lost and need...
  8. Question about o2 location

    the shop is in the process of installing my tearstone/ aai kit from crows car and was wondering where the best place to put o2s and the aem wideband are i have a 2000 gt so i have to o2s and then the wideband o2 any help would be great
  9. O2 Sensor question

    So I was looking through the service manual, and I noticed that the "front bank, sensor 2" O2 sensor is part of the precat assembly (#12). The problem comes in with that fact that I also noticed that the xtech manifold that I have, doesn't have a place for the second O2 sensor. The xtech...
  10. Running Very Lean SUGESTIONS?

    ok, so i ve got a problem w/ my car. Sensors say its running crazy lean, but i can smell fuel in the exhaust. This is causing my car to misfire. Ive been trouble shooting it for about 3 weeks now... ive replaced all the o2 sensors, recheched my injector and emanage wiring, checked for exhaust...
  11. SUCCESS!!! No post-cat o2 sensors... no SES!

    Hehehh :) I've finlly figured things out. There are so many color-coded layouts out there, and so much confusion about which wires are which. But I've finally done it... no post-cat o2's... and no SES! Dual-out oxygen sensor sim oxygen sensor heater resistor-sim So yes, it can be done. And you...