| <!img class="inlineimg" src="/forums/multisite-style/m3post/statusicon/post_old.gif" alt="Old" border="0" />02-24-2010, 12:35 PM | #11 |
Automotive Industry Insider
462 Rep 1,948 Posts | Quote: Originally Posted by Kyoshi71 Ohms need to match +1 This is a must... The resistance of the wire extension needs to match the original OE 02 sensor wires, in order to ensure a proper signal feedback from the sensors to the ECU. The 02 sensors work off very sensitive differential voltage values (to calculate the oxygen content in your exhaust gas stream), so a very high, or very low resistance wire will skew the signal feedback results. When that happens, the ECU will detect an issue (and throw a fault code)...when there is actually nothing wrong. A poorly executed solder joint (between the OE O2 sensor wire and the new wire extension) will also be problematic. You will end up chasing a 'phantom' 02 sensor fault code that doesn't exist. __________________ The best is yet to come... |
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