Non start. Multiple faults. Of particular interest were P0261, P0267, P0264 and P0270. These describe "Injector short to ground" (All four injectors)

(The others relate to Lambda sensor issues and an implausable CPS)

The car was a non-starter. I could find no obvious cause for the faults on initial visual inspection so I clearerd them in order to see what might come back. With faults cleard car started and ran fine with no return of fault codes apart from P1116 (Lambda sensor heater open circuit) which I suspect is valid but not directly related to the non start.

I am guessing that the non start was as a result of the ECU going into a "safe" condition to prevent starting if serious faults are detected. Clearing them brought it out of the "Safe" mode.

Now I have checked the web and others seem to have had similar issues but I have not found any explanations/resolutions.

Anybody else come across this?? Any suggestions??