Jay77 Posted November 25, 2007 Report Share Posted November 25, 2007 I did a diagnostic test on my 2000 S70 and my readings were as follows: P0506 (Idle Control System RPM Low) and P0135 (O2 Sensor Heater Malfunction Bank 1 Sensor 1). Since the ECU controls the Idle speed, can this be corrected? Which O2 senser are we talking about?Thanks in advance, Link to comment Share on other sites More sharing options...
Alfredo Posted November 25, 2007 Report Share Posted November 25, 2007 sensor 1 Bank 1 is the first heated oxygen sensor on the exhaust system front pipe.His malfunction gives negative load to the IAC via ECU. rgds . Link to comment Share on other sites More sharing options...
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