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  1. Service Engine Soon - Misfire on Cylinder 4

    1st Gen Hangout
    UPDATE: My ‘00 Fronty passed smog! I replaced the fuel injector on cylinder 4. And that did the trick. One thing that came up was that the O2 sensor was not ready even after several attempts of completing the drive cycle. I replace the two upstream sensors and viola... O2 sensor was marked...
  2. Service Engine Soon - Misfire on Cylinder 4

    1st Gen Hangout
    No water in the engine. Sent from my iPhone using Tapatalk
  3. Service Engine Soon - Misfire on Cylinder 4

    1st Gen Hangout
    Thanks for the help!!! I’m stilling trouble shooting. Sent from my iPhone using Tapatalk
  4. Service Engine Soon - Misfire on Cylinder 4

    1st Gen Hangout
    It’s definitely not chugging. During idle, I can hear and feel a slight sputter (not sure if that makes sense) but there is no noticeable drop in RPMs. And everything runs smooth when I’m driving. I’ll look into the crank position sensor and swap the injector to see if the code follows...
  5. Service Engine Soon - Misfire on Cylinder 4

    1st Gen Hangout
    My uncle gifted me with a 2000 Frontier and learned that it didn’t pass smog back in January and has the “Service Engine Soon” (SES) light on. The code being thrown out on ODBII is P0304 (misfire on cylinder 4). So I began to troubleshoot... 1. swapped the spark plug wire from cylinder 4 with...
  6. O2 Sensor Cut

    1st Gen Hangout
    thanks for the info! i’ll look into that. Sent from my iPhone using Tapatalk
  7. O2 Sensor Cut

    1st Gen Hangout
    here’s a pic... Sent from my iPhone using Tapatalk
  8. O2 Sensor Cut

    1st Gen Hangout
    Hi! I was gifted a 2000 Fronty and discovered the wires to the 02 sensor were cut. Can someone send pics of where this connects? Sent from my iPhone using Tapatalk
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