Should I Repair or Replace My ECU / ECM?

Quick Answer In most cases, replacing your ECU is faster, cheaper, and more reliable than repairing it. ECM repair requires specialized equipment and can take weeks. A remanufactured replacement from Car Computer Exchange arrives pre-programmed and ready to install in minutes. Have you or someone working on your car — maybe a repair shop or […]
What’s a Core Charge / Deposit When Buying an ECM?

Quick Answer A core charge is a refundable deposit (typically $50–$100) you pay when buying a remanufactured ECM. Once you send back your old module, the deposit is refunded. It keeps the remanufacturing cycle going and keeps ECM prices low. If you’re shopping for an engine control module for your Dodge, Jeep, Ford, or some […]
Where is my Dodge ECM + PCM Located?

Quick Answer In most Dodge vehicles, the ECM/PCM is located near the battery or inner fender in the engine bay. The exact location varies by model year. At Car Computer Exchange, every module we sell is pre-programmed to your VIN — just plug in and drive. At Car Computer Exchange, we do the heavy lifting […]
How Do I Replace My Car’s ECM?

Quick Answer Replacing your ECM is a simple plug-and-play job you can do yourself in minutes. Locate the module (usually in the engine bay near the battery), disconnect the old one, connect the new one, and you’re done. Order a VIN-matched ECM here. If you own a car or truck long enough, there will come […]
10 of the Cheapest Engine Control Modules (ECMs) for Sale
Quick Answer Remanufactured ECMs start as low as $100–$200 depending on your vehicle’s make and model. Every unit from Car Computer Exchange is reprogrammed with OEM software and matched to your VIN — no dealer programming needed. Your car is the sum of a variety of modern technologies that all work together to drive you […]
Where is My Vehicle’s Engine Computer (ECM / PCM) Located?

Quick Answer Most ECMs are located in the engine bay, often near the battery, fuse box, or inner fender. Some vehicles mount them inside the cabin behind the dashboard or glove box. Check your owner’s manual for the exact location, then order a plug-and-play replacement. If you have a failing or malfunctioning engine computer — […]
When is it Time to Repair or Replace My Vehicle’s Engine Computer?

Quick Answer Replace your engine computer if you see persistent check engine lights, stalling, misfiring, poor fuel economy, or won’t-start conditions that don’t trace back to other components. A remanufactured ECM from Car Computer Exchange arrives pre-programmed and installs in minutes. A malfunctioning or failing powertrain control module (PCM), transmission control module (TCM), or engine […]
Diesel vs. Gasoline Engines and Powertrain Control Modules

Quick Answer Diesel and gasoline engines use different PCMs because they have fundamentally different combustion processes. Diesel PCMs manage glow plugs and higher compression ratios, while gas PCMs manage spark plugs and catalytic converters. Find the right module for your engine type. Every time you pull up to the gas station, you probably always notice […]
Car Computer (ECM, PCM, and TCM) Error Codes & Definitions

Quick Answer OBD-II error codes are your car’s way of telling you what’s wrong. Codes starting with P0xxx are generic powertrain codes; P1xxx are manufacturer-specific. This guide lists common codes, their meanings, and whether they indicate a PCM failure. Need a replacement? Find your ECM here. Modern vehicles have extremely smart engines. Your car or […]
How Much Does an Electronic or Engine Control Module Cost?

Quick Answer Engine control modules typically cost $200–$400 for remanufactured units and $400–$2,200+ for brand-new OEM units. The exact price depends on your vehicle’s make, model, and year. Get an exact price for your vehicle. The costs of your car or truck’s engine control module — also known as the Electronic Control Module or ECU […]