I agree. Throwing a new MAF at the code would be silly until you've had a thorough diagnostic. Only Planet can talk to the MAF and read the data from it.

Google "Planet Owners Map" for more.

Thanks for the advice so far, probably a bit more history would be useful here.

I bought the car with a blown turbo and proceded to do all the items required ie, sump off and cleaned, oil pick up replaced, turbo feed pipe replaced, turbo core and nozzle unit replaced, oil and filter replaced, vacuum pump filter cleaned, breather system cleaned, dpf and cat cleaned, could not work out how to remove air filter even with plastic scuttle removed, so proven working MAF exchanged, fuel filter checked by draining no water or crudd, has tank attached on side of filter for pre add blue additive system, level fine. what I did not know or cannot find information on how the actuator rod end should be set up on core replacement, original setting lost. I settled for the rod just slipping over lever spigot at the closed stop, no idea how to set open stop, I do not have access to a boost gauge. EML can be extinguished by turbo app, however car idled for 20 minutes with EML out, drove for about 5 miles, EML returned on giving the car some welly. hope all this can switch a light bulb on. thanks again so far. Mike.