Error Code
312 & 316
Step-by-Step Guide for Diesel Parts Installation
When attempting to install an H&S Mini Maxx on your 07-10 Duramax and you get code 312, go to show settings & hold down bottom left key 10 seconds then a screen will pop up. Enter unlock code 0468.
Then select reset unit then go directly to install download, do NOT re select truck and year.
Error code 316:
This code means that the tuner isn't communication with my ECM and there must be a tune on the truck or has been a tune on it in the past. Your truck will first need flashed back to stock at your local dealer before before the Mini Maxx will install.
Other Error Codes
Find answers to common error codes and their meanings for quick troubleshooting.
Error code P0420 indicates a problem with the catalytic converter. It usually means that the catalytic converter is not functioning efficiently.
To fix error code P0420, you may need to replace the catalytic converter or perform other related repairs. It's best to consult a professional mechanic for an accurate diagnosis and solution.
Error code P0300 indicates random misfires in multiple cylinders. It can be caused by various factors such as faulty spark plugs, ignition coils, or fuel system issues.
To fix error code P0300, you may need to inspect and replace spark plugs, ignition coils, or other components related to the ignition system. It's recommended to seek professional assistance for proper diagnosis and repair.
Error code P0171 indicates a lean fuel mixture in bank 1 of the engine. It can be caused by issues such as a vacuum leak, faulty oxygen sensor, or fuel delivery problems.
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