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[JamesV6CDX]

P0150 - o2 sensor, bank 2 sensor 1, circuit malfunction.

Any idea? Voltages cycle ok in software.

First thought is check where i spliced loom for lpg lambda output.... But am sure thats fine, assuming it is, possibly a dodgey sensor, or wiring to it?

[Andy H]

P0150 - o2 sensor, bank 2 sensor 1, circuit malfunction.

Any idea? Voltages cycle ok in software.

First thought is check where i spliced loom for lpg lambda output.... But am sure thats fine, assuming it is, possibly a dodgey sensor, or wiring to it?

Hmmm, how sure are you? It is bound to be the connection you 'know' is good because you only made it recently

[feeutfo]

My very limited experience with lambdas tells me a dodgy lambda would give a fuel trim code on that bank, and a slow or no response code from the lambda itself.

But obviously you'll be looking for a far more knowledgable reply than mine.  :-?   

[JamesV6CDX]

I had the fuel trim code the other day Chris

[Lazydocker]

Afraid your connection is the most likely culprit if it's never shown before