Replace your failed engine computer with an OEM 2012 Kia Optima 2.0L ECM (also called a PCM or ECU), programmed to your vehicle before it ships.
This module is a direct replacement for units carrying part number 39101-2G891. Every unit is refurbished, bench-tested against OEM specification, and flashed with the latest manufacturer software.
What you receive
- Programmed to your VIN before dispatch, so it installs plug and play
- Bench-tested by our technicians before it leaves us
- Lifetime warranty for as long as you own the vehicle
- Free US shipping, typically delivered in 2-4 business days
- No core charge – keep your old unit
Why Kia modules must be programmed
Kia vehicles use a factory immobiliser. A replacement engine computer has to be matched to your VIN before the engine will start, which is why a blank or mismatched unit bought elsewhere often leaves the car cranking without firing. We handle that programming for you before the module ships.
Common symptoms of a failed Kia Optima ECM
- Engine cranks but will not start
- Sudden stalling while driving
- Check engine light with sensor codes that do not resolve after replacing the sensors
- No communication with a scan tool
Before you order
Enter your 17-character VIN at checkout so we can match the module to your exact vehicle. If you are unsure which part you need, call 516-494-7838 and a technician will confirm fitment with you.

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