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Go Back   NissanForums.com :: Nissan Forum > Nissan Models > Sentra, Pulsar, NX, B14 200SX > QG18 1.8L Engine
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QG18 1.8L Engine Engine Discussion: 2000+ Sentra XE, GXE, & 1.8

       
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Old Jul 31st, 2007, 05:03 AM   #1 (permalink)
Rudyd2002
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o2 sensors and data link

does anyone know what to do with the other two o2 sensors after changing my headers? I hear i would have to drill holes and well them into the exhaust after the secondary cat, what all will i need to do this? another thing i tried to get a fault code from my ecu but after about six times my car still would not link to the system, any ideas why other than it may be faulty
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Old Jul 31st, 2007, 07:56 PM   #2 (permalink)
Doja
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check your fuse for the OBD2 connector, on some cars its the same as the cig lighter
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Old Aug 1st, 2007, 09:01 AM   #3 (permalink)
Rudyd2002
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ill do that, ive never used the cig lighter cuz i never had one. and to think about it i i tried to plug one in from another car a long time ago and it didnt work
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Old Aug 1st, 2007, 05:56 PM   #4 (permalink)
Rudyd2002
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you were right about the fuse it was blown in half, do you know what may have caused this? it dont look like it just blew out.
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Old Aug 3rd, 2007, 01:56 AM   #5 (permalink)
Rudyd2002
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well i replaced the fuse and installed the new downstream o2 sensors but my check engine light is still on and the darn thing still will not link to get a fault code, whats next? any more ideas
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Old Aug 3rd, 2007, 09:54 AM   #6 (permalink)
Doja
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The code reader wont connect at all? Or it just says no codes? The bolwn fuse can usually come from too much stuff plugged in, such as cell phone chargers and that stuff, Check to make sure that fuse didnt blow right away. If it did you probably have a short in the wiring. While your at it did you check all your fuses?
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Old Aug 4th, 2007, 12:14 PM   #7 (permalink)
Rudyd2002
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No it wont connect at all, or should i say when connected the code reader says no link, the new fuse that i put in is still good. i checked all of the fuses inside and under the hood, i couldnt check any relays cuz i dont have a multimeter
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