Engine going lump/almost no power

[Fat_Board]

Hi.

Before I put the car in for winter storage I had some sporadic problems with the car.
It would suddenly stop firing at a few cylinders. But just doing a quick restart and the problem would be solved again.

I tried to check this with an OBD tool when I got the error the next time but there were no error showing. The error I get on the dash is in the middle. The wavy lines.

This has so far happened to me like 4 times.

What could possibly be the problem?

I also have a problem with the error code P0173 Fuel trim showing up often. The workshop have been looking into this, but they still haven't figured out anything.

 

[Fat_Board]

I've just had the car in for a big service where they have changed the coils, O2 sensor, fuel filter, spark plugs and the timingbelt.

Yesterday this random fault appeared again. The electronic fault warning showed and the enginen went really slow. I had to restart it and then it was back to normal. No hassle at all.

I just don't know what this fault could be. Are there anyone who could help me?

 

[9810588]

How about fuel pump? Have you changed that recently?

 

[Jamesv6]

There’s 4 Lambda probes I think? Did you change all of them?
I recall my garage changed all 4 (they were not cheap)

 

[Fat_Board]

I bought four Lambda probes and I hope they have installed all four of them. There were no parts left when I picked up the car.

The fuel pump have not been changed in the four years I've had the car.

 

[Jitstar]

FWIW mine had cut out twice, after the car had been running for a few hours. Scott is convinced it’s the fuel pump, so it’s getting changed out right now. Hopefully it fixes the issue. With mine it would start again once the car had sat and cooled down for a bit.