The saga continues - P0530

[R20BTG]

After a faultless day on track yesterday, the car sat overnight on the trailer in the rain. Starting it this morning it was lumpy and sounded like it was running on three cylinders. Water was pooling around cylinder 4 coil pack (classic Renault leaks) so thought it might be that. However drying it out didn’t make any difference.

No EML, but returning the codes below. Can anyone help with any of them?

Definitely seems electrical considering I had no issues whatsoever yesterday when it was warm and dry. At the risk of buying unnecessary parts again I’ve ordered a pre-cat lambda sensor and my mechanic is checking and cleaning the gearbox earth strap.

Any ideas for fault finding workflow? I’m supposed to be at the Nurburgring in just over two weeks!

Thanks

 

[VeiRoNv2]

P0530 Refrigerant pressure sensor 1 circuit/open

P0350 Ignition coil primary/secondary circuit/open

P0138 Oxygen sensor behind catalytic converter 1, circuit high

P0426 Catalytic converter temperature sensor in front of catalytic converter 1, circuit range/performance

P0425 Catalytic converter temperature sensor in front of catalytic converter 1, circuit/open

P0440 Evaporative emission system Canister purge solenoid

Have you checked if the wiring to the first O2 sensor is okay?

 

[R20BTG]

The car is currently on a ramp at my mechanic but new O2 sensor (pre-cat) should arrive tomorrow.

Thanks