Question about 1996 BMW 318
How do i solve failing NOX problem on 318i, i have replaced the converter and o2 sensor, i have check engine light on and it was reading o2 sensor
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Posted on Jan 02, 2017
Replace the Oxygen sensor. All your trouble codes are downstream of the oxygen sensor, and are related to it.
Once you replace the oxygen sensor (replace with a BOSCH sensor!), remove the positive battery cable, step on your brakes for 10 seconds, then reattach the cable. This will clear the codes from your ECM (Electronic Control Module).
Posted on Mar 26, 2009
if the 02 sensor is unplugged and you are reading a scan tool from the diagnostic link then of course the 02 reading is wrong
if you are using a volt meter right at the connector thats on the sensor then the 02 will read lean because the heating elements in it are disconnected when you unplug it
check 02 voltage with engine warmed up and 02 sensor connected you will have to pierce insulation with your probe
Posted on Mar 22, 2010
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