Oxygen sensor upstream NOTE The fault "Over limit value" is detected if the oxygen sensor voltage is > 1.5 V for an uninterrupted period of more than 5 s. Diagnostic conditions DME control module power supply 10.5 V … 16 V Oxygen sensor heater switched on for > 70 s Oxygen sensing active Exhaust temperature 600 °C (1,112 °F)... 750 °C (1,382 °F) min. 3 s overrun No secondary air injection or diagnosis of secondary air system active No tanventilation or diagnosis of tanventilation system active No other oxygen-sensor faults stored Possible fault causes Fault in oxygen sensor heater A If this exists, is to be taken care of first Loose contact or corrosion in the connector Short circuit to B+/ground/between wires or open circuit in the wiring Heater injection Oxygen sensor faulty DME control module faulty
Discussion summary
YOUR RESEARCHP0154
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 1 captured posts examined · 1 partial discussions
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
1 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- Planet-9: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T181445Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
This is a source reference. Confirm exact model applicability in the original material.