Can you buy a used ECM?
Your mechanic advises you that a specific electronic control unit (ECU) needs to be replaced. You can buy a Used or Reman electronic control unit.
Is remanufactured ECM good?
Remanufactured engine control modules (ECMs) are car computers that have been repaired, refurbished, reprogrammed, and are good as new. In fact, because they contain all the latest manufacturer software updates, they are on par with ECMs in new vehicles that are rolling fresh off the line.
What is refurbished ECM?
A rebuilt Electronic Control Module (ECM) is a used module that has been refurbished and rebuilt. Although there may be external signs of use, the electronic components of a rebuilt module are repaired to function like new.
How much does it cost to replace an engine computer?
The cost for the new ECM will typically be around $800, with labor around $100, bringing the average total expense for an ECM replacement to approximately $900 before taxes and fees. This can increase depending on the shop you go to or the type of car you, running as high as $2,000.
Does the ECU have to match the engine?
In general, yes. All ECUs will need to have software intended to run the engine it is connected to. In addition, many newer cars (approximately 2008 or newer) use a CAN bus system where each component (like the ECM, BCM, PCM, etc) all need to be programmed to the VIN number of the car to work properly.
How much does it cost to reprogram an ECM?
If the engine control module just needs to be tested, analyzed, and reprogrammed, it should cost you between $150 and $300. As with buying new, if you have someone else install your replacement remanufactured ECM, you could be looking at additional hundreds of dollars of labor costs.
How is a ECM rebuilt?
The ECM is completely disassembled, cleaned, and carefully inspected for damage and wear, and any non-functioning components are replaced. The rebuilt ECM then undergoes thorough performance and reliability testing.
What should I look for when buying an ECU?
Your engine requirements will dictate the features you’ll need from your ECU. The number of Inputs and Outputs required will quickly narrow down your selection. From there look at engine specific functionality requirements like Drive-By-Wire throttle, Flex Fuel, Knock Control, Long Term Learning or Data Logging.
What is the most common failure of an ECM?
The most common source of ECM failure is in one of the wiring harnesses. If the wires to the transmission or fuel injectors become corroded, they can lose conductivity, leading to a failure. Fortunately, these issues can usually be resolved by replacing the corroded wires.
How much does ECU cost?
The part alone can cost between $1,000 and $3,000, depending on the make and model of your vehicle. Fortunately, an ECU can be repaired or reprogrammed in many cases—thus preventing the need to actually replace an ECU.
Do you need to reprogram ECU after engine swap?
Short answer is no, you will not need to reprogram the ECM.