Thanks for the Gi-G but need to know what motor?
One beep ever 5 seconds does log a code, it's weird because the ECM is saying there is a problem
For excess fuel would be good to check pressure
Gi 4.3, 5.0 = 29 psi +/- 2
Gi 5.7 = 50-60 psi
Gi 7.4 = 39 psi +/- 3