How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask GM Bob Your Own Question
GM Bob
GM Bob, ASE Certified Technician
Category: Chevy
Satisfied Customers: 1104
Experience:  30 plus years. experience as GM technician, ASE Master Technician and GM Certified.
Type Your Chevy Question Here...
GM Bob is online now
A new question is answered every 9 seconds

My 2013 chevy Malibu just gave reduced power and service

Customer Question

Customer: my 2013 chevy Malibu just gave reduced power and service traction control when I check codes with my scanner it shows 7e8 and 7ea
JA: Thanks. Can you give me any more details about your issue?
Customer: well the service traction control light is on and when you accelerate it says engine over speed
JA: OK got it. Last thing — JustAnswer charges a fee (generally around $18) to post your type of question to Chevy Experts (you only pay if satisfied). There are a couple customers ahead of you. Are you willing to wait a bit?
Customer: ok
JA: OK. Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Bob replied 1 year ago.

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#

Thank you

Customer: replied 1 year ago.
1G11E5SA7DF270427 is the vin I was trying to avoid driving be of the slow speed the scan says control module 7E8 and code 7EA
Expert:  GM Bob replied 1 year ago.

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

Customer: replied 1 year ago.
Ok it's code P228C
Expert:  GM Bob replied 1 year ago.

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?

Customer: replied 1 year ago.
No I have not worked on the car, I had the dealer put in a wheel bearing that's all the work that's been done to the car its to complicated for me. There is 74000 on the car would the fuel rail cause the car to go into the reduced power mode and give the stabilatrac message? Would the throttle body cause this
Customer: replied 1 year ago.
I called chevy dealer and they said the power train warranty only covers
internal engine parts
Expert:  GM Bob replied 1 year ago.

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

Expert:  GM Bob replied 1 year ago.

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.

Expert:  GM Bob replied 1 year ago.

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