Quote:
Originally Posted by manny
When the airpump kicks in ( on start-up ) the oxygen sensor has to show a lean condition.
If the sensor is suspect, you may want to have it looked at.  |
How can the 02 sensor show anything until it is in closed loop and hot????
The ECU does an AIR system self test AFTER closed loop condition has been attained....NOT at start-up..
..but the rest of the info is correct.