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Recommended Posts

  • Admin
Posted

I assume that is a P0140

If so...

P0140 Oxygen sensor behind catalytic converter, open circuit

Possible fault causes

- Fault in the oxygen sensor heater, if this exists, is to be taken care of first

- Loose contact or corrosion in the connector

- Open circuit in the signal leads

- Open circuit in ground lead

- Oxygen sensor faulty

- DME control module faulty

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