Wow... Thank you all so much! Step 1 will be to order that Denso part and get it installed. I will let you all know the results.

Welcome to MVS.

Yes, those codes are for the front sensor. Replace the O2 sensor, clear the codes, and go from there. This idle dip symptom is indicative of a vacuum leak or mass airflow/O2 sensor discrepancy on the non-ETM cars.

The low pressure AC sensor is on the passenger side near the base ...

Hey guys/gals,

First post here but I love the forum so far. Just bought a 2000 Volvo Non-Turbo S70 2 months ago with some minor problems. So far I've very much enjoyed the ride and love the car overall. The couple issues I am dealing with are as follows:

1) The idle will dip down after I've been ...