P0404 code despite 2 new EGR valves

Explanation of what a P0404 Exhaust Gas Recirculation Circuit Range Performance engine

I bought a Puma unlock code for my Nanocom and plugged it in yesterday and I am getting the fault code CODE: P0404 Exhaust gas

p0404 Saturn s-series P0404 trouble code EGR cleaning Disclaimer: This video is not meant to be a

p0404 P0404 - EGR 'A' Control Circuit RangePerformance - OBD2 Trouble code: ✓ Meaning ✓ Causes ✓ Symptoms ✓ Diagnostics ✓ Repair guides ✓ Repair costs ➤ Keep