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- Thu Sep 25, 2003 12:52 pm
- Forum: Non-Hondata
- Topic: OBD2 oxygen sensor signals
- Replies: 1
- Views: 2492
OBD2 oxygen sensor signals
On my 2-channel oscilloscope, what should the secondary (after cat) O2 sensor output look like - compared to the primary (mixture control) O2 sensor? - for both closed-loop and open-loop modes. Should the secondary sensor output be a higher voltage level - on average?