Zaifa 1.6 energy

[Robbosam]

My service light keeps on coming on after changing the a2 lambda sensor it stopped but now keeping on coming on again and hose into limp mode, plus the petrol seem to go down rather quickly, any ideas what’s the problem ? 

[Vauxhall Owners Club]

I would scan the vehicle electronic system for fault codes in the ECU memory to more accurately diagnose the issue

A cheap scan tool can be purchased online or motoring store to scan and reset the ECU