Quote:
Originally Posted by ChesterV
Speaking of the secondary O2 sensor. It reads 0v on idle. It only goes up at .800mv when reving the car.
So to compare LTFT and Downstream
LTFT is at +20 on idle however goes back down to 0 on throttle.
Downstream Sensor is at 0v but goes up to normal voltage 800mv when on throttle.
I also have a jstyle defouler on the secondary O2 to fool the PCM to pull up p0420.
I'm starting to think that my downstream O2 is dead as when I make the switch the sensor was basically just free/lose around the O2 slot
Could have really killed that
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It shouldn't read in a binary fashion like that...I'm wondering if it's been burnt up or otherwise damaged.