
Expert Reply: If you take your truck to a GM dealer and explain to them the situation they will be able to reflash your truck computer back to the stock tune. The other option would be to track down the original owner of your truck to see if you can have them reprogram the truck back to stock with whatever programmer they used.
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What is an automotive computer and how does it work?
The automotive computer is the central network that governs your vehicle’s sensors, emissions and safety equipment, and even engine performance. The heart of this complex system is the engine control unit, or ECU. It’s also referred to the engine control module or ECM.

How do I get back my stock tune?
0:031:24How to Return Your Vehicle To Stock with an SCT X4 Performance ...YouTubeStart of suggested clipEnd of suggested clipOption. Follow the first prompt the device gives you which will be to turn the key on confirmMoreOption. Follow the first prompt the device gives you which will be to turn the key on confirm returning vehicle to stock by selecting. Continue from here you will follow the device prompts.
How do you take the ECM off a Silverado?
0:382:09How To: 19-20 GM Truck ECM Removal - YouTubeYouTubeStart of suggested clipEnd of suggested clipFrom the front of the wheel well push the felt liner back to expose the ecm to remove the threeMoreFrom the front of the wheel well push the felt liner back to expose the ecm to remove the three connectors from the ecm. Slide the red tabs back to unlock each connector.
What is GMC LPO processing option?
A Limited Production Option (LPO) is a preordered option that includes a single accessory or a collection of accessories that are part of a special package.
Where is the PCM located on a 2007 Chevy Silverado?
It's under the hood right above the steering box (covered with black plastic cover).
How do I reset my truck computer?
1:022:54How to Reset Your Car's Computer, Old School Scotty Kilmer - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo start the vehicle. And put it in neutral. Let it run for about four minutes in neutral. Then youMoreSo start the vehicle. And put it in neutral. Let it run for about four minutes in neutral. Then you put it in the low gear not drive but low gear leave your foot on the brake.
Is the ECM and PCM the same thing?
The terms PCM (Powertrain Control Module), ECU (Engine Control Unit) and ECM (Engine Control Module) can sometimes be used as interchangeable generic phrases for the same thing - a control unit for the engine/transmission system.
What is a LPO code?
According to the order sheet, (PDH) is the dealer order code for a package that includes: (VAV) All-weather floor mats, and. (VLI) All-weather cargo mat. Both of these are listed as "LPO" which stands for "Limited Promotional Option." This is a fancy way of saying that the option will be dealer installed.
What does Chevy LPO mean?
postalkid, it's an acronym for "Limited Promotional Option". They're usually installed by the dealer just before delivery.
What does LPO stand for in the automotive industry?
LPO. Limited Production Option + 1 variant. Automotive Systems, Technology, Corvette.
How can you tell if a PCM is bad?
What Are the Symptoms of a Faulty PCM?Your “check engine” light is on.Other warning lights may be on, including traction control and ABS.You lose fuel economy for no apparent reason.Your car stutters when starting, requires multiple attempts, or won't start at all.Stuttering or stalling during idling.More items...•
How do you reprogram a powertrain control module?
0:171:55How to Reprogram Your Car's Computer - YouTubeYouTubeStart of suggested clipEnd of suggested clipIf your vehicle has a failure of communication. It's often the computer not communicating correctlyMoreIf your vehicle has a failure of communication. It's often the computer not communicating correctly with the engine many vehicles from 1996 onwards have computers that are reprogrammable.
Does a PCM need to be programmed?
A PCM reprogram may be necessary when the powertrain isn't operating properly but the mechanical components are fine. If the PCM is faulty, it can disrupt the operation of various components hence why a reprogram is necessary.
How to upload stock to GM?
GM Stock File Upload Process at the Vehicle: Step 1) Connect the programmer to your vehicle’s OBDII port. Step 2) Go to the menu titled “Program Vehicle” and press select. Step 3) Within the “Program Vehicle” menu, go to “Upload Stock” and press select.
How to get stock file from a computer?
Step 1) Next, take the programmer to a computer, but don’t plug it in yet. First we’ll install the software and drivers. Click here for the software: SCT Device Updater. Step 2) Connect your programmer to the computer and open the SCT Device Updater program. Step 3) Click on “Get Stock File from Device”. Select your Desktop to save the files.
What is the computer in a truck?
Ans: The computer is the brains of your truck. It controls sensors from a variety of different systems and monitors and stores their resulting data. The computer, or ECU, stores and uses this information to track and manage engine performance, emissions output, and fuel efficiency.
How to reset a Chevy Silverado computer?
The first step in the process of resetting the Chevy Silverado computer is putting the ignition key. In this step, you need to place the ignition key to your Chevy Silverado and turn it the engine on or off position.
How long does it take for a check engine light to return?
While you can reset the ECU to eliminate a check engine light without actually repairing your car, the light will return within 150 or 200 miles of driving. For that reason, repair the vehicle properly using the engine codes as a guidepost to pinpointing the precise issue.
Why reset engine ECU?
The primary reason to reset an engine ECU is to restore the vehicle to the factory computer settings. A hard reset like this will clear out any learned memory about driving history. Yes, really – the ECU is aware of how you’re driving and is taking notes.
Why is the ECU important in a car?
Because of how reliant modern cars are on computer power, the ECU is the brains of your vehicle. Without a functioning ECU, a modern car or truck would be like a dead cell phone, good only as a pretty paperweight. The closest most of us come to seeing the ECU in action occurs when the check engine light comes on.
What is the computer in an automobile?
The automotive computer is the central network that governs your vehicle’s sensors, emissions and safety equipment, and even engine performance. The heart of this complex system is the engine control unit, or ECU. It’s also referred to the engine control module or ECM. Both the ECU and ECM are terms often used interchangeably.
Why is it important to have a car computer?
The best thing about having a car computer is you can avoid the traffic . The car PC can help you to get the best routes for the journey by knowing which route has so much traffic and which one does not. This way, it can help you avoid traffic.
