first time here family off 2 skodas.a new fabia vrs and an 02 fabia 1.4 which is not running 2 good fault code 17549 showing up can anybody help.

hi and welcome to briskoda m8...

stick this in the diagnostic fault code or "ask a tech" section you will get a better response...

"17549 load calculation cross check range/performance" - Not sure, but sounds like a fuelling issue to me?

Welcome

Try the search, I seem to remember seeing this come up a little while ago -

17549/P1141/004417 - Ross-Tech Wiki

17549/P1141/004417 - Load Calculation Cross Check: Implausible Value

Possible Causes

Mass Air Flow Sensor (G70) OR Manifold Pressure Sensor (G71) faulty

Vacuum Lines faulty

Possible Solutions

Check Mass Air Flow Sensor (G70) OR Manifold Pressure Sensor (G71)

Check Vacuum Lines

Check Engine Operating Conditions => Meas. Blocks

Special Notes

Uwe: I think this code is set when the airflow being measured (or otherwise calculated) by the ECU doesn't make sense given other operating parameters such as RPM and throttle opening, manifold pressure, etc.