Search found 3 matches

by 20pontiacvibe03
Mon Apr 25, 2011 7:48 pm
Forum: Problems & Warranty Issues
Topic: Downstream Oxygen Sensor Voltage?
Replies: 4
Views: 2210

Re: Downstream Oxygen Sensor Voltage? (bassplayaz06)

Yes, I'm probing the connector after the harness comes through the floor on the passenger side (blue or purple wire)....
by 20pontiacvibe03
Mon Apr 25, 2011 1:23 am
Forum: Problems & Warranty Issues
Topic: Downstream Oxygen Sensor Voltage?
Replies: 4
Views: 2210

Re: Downstream Oxygen Sensor Voltage? (bassplayaz06)

Thanks! I haven't checked it with the key on and car off....I'll have to do that...
by 20pontiacvibe03
Sun Apr 24, 2011 3:05 am
Forum: Problems & Warranty Issues
Topic: Downstream Oxygen Sensor Voltage?
Replies: 4
Views: 2210

Downstream Oxygen Sensor Voltage?

Hi, Can anyone tell me what the downstream oxygen sensor voltage reads at idle? I got the P0420 code. I know this generally points to a catalytic converter, but my downstream sensor is not indicating that. As I understand it, in the case of a bad cat the downstream sensor starts to mirror the A/F se...