Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello my name is***** for the wait.
The codes you posted do not come up in the GM service manual.
Is there more info on the scan tool?
Can you get the car scanned from a auto part store. They normally do it for free
Also can you post your VIN#
What scan tool are you using? Is there a cross reference chart that came with it?
There is no module called 7E8 or code 7EA. Can you try a different scan tool?
You may still be under warranty with Emission Select Component 03/13/2021 80,009 MI
Also you normal warranty is 03/13/2016 36,000 MI
Sorry for the delay.
This code is for fuel pressure
The actual fuel rail pressure is 3 MPa (435 PSI) less than the desired fuel rail pressure. The condition exists for greater than 10 s
Have you done any work on the fuel system?
How many miles on the car?
When this code set you get (A message center or an indicator displays Reduced Engine Power)
You need to check fuel pressure going to the high pressure pump.
With a scan tool need to read what the high fuel pressure sensor is showing.
Also will need a multi meter.
Things may cause this Fuel pump in tank or High pressure fuel pump on the engine
Need to run some test
I check and the high pressure pump is covered 5 years 100,000 miles.
I just got one in the shop same problem and codes.
Hello just giving you a update. I replaced the high pressure pump and fixed my problem.
It was covered under power train warranty.
Please let me know if you need more help