Engine light with no code ??

[dracing70]

Anyone ever have this happen?? It's a lmm and I just tuned it and it's illuminating the engine light but not reporting a code. Any thoughts ??

 

[chevyburnout1]

What scanner?

 

[dracing70]

Scanned with efi and Also just a cheap edge cts

 

[Harbin_22]

Scanned with EFI in the software tool or just with the handheld?

 

[dracing70]

Scanned with EFI in the software tool or just with the handheld?

The full software tool

 

[Houser04lly]

Mine has done this. Check engine came on a couple times recently I plugged in efi and it read no DTCs