Quote:
That's interesting.
Not all vehicles run correctly with O2 sensor unplugged; some ECU interpret this as a full lean condition (0 volts on the O2 signal line) and start dumping in fuel. Poor mpg and trailerhitching @ cruise are the usual symptoms.
|
Most ECUs aren't completely stupid and they will only believe the "lean" condition for so long before they ignore the O2, throw a CEL and switch to open loop.