Car will not start
Mail in the ECU for no-start testing when the vehicle points toward a computer, immobilizer, power, or communication issue.
Local Houston service and nationwide mail-in repair
Drop off your ECU, ECM or PCM at our Humble shop, or ship it from anywhere in the United States. Our technician team supports repair, programming, cloning and testing for all makes and models after the module and vehicle details are confirmed.
Repair shop details
High-intent visitors want to know who is handling the module, how pricing works, and what happens after the ECU arrives. This shop process keeps the first step clear: pay the diagnostic checkout, mail in the ECU, then approve the full invoice only after inspection.
Search by problem
Mail in the ECU for no-start testing when the vehicle points toward a computer, immobilizer, power, or communication issue.
We review no-communication complaints involving diagnostic link, CAN, LIN, power, ground, and board-level faults.
Moisture, corrosion, lifted traces, and damaged components are checked before a full repair quote is sent.
Misfire, injector, ignition coil, throttle, and output-stage faults are reviewed during ECU testing.
Send original and replacement module details for ECU cloning, immobilizer matching, and programming.
DTC-related requests are reviewed after vehicle, ECU, symptom, and repair history details are confirmed.
Repair by vehicle make
Choose your vehicle make to see relevant ECU repair, testing, cloning, and module service information before starting a mail-in diagnostic.
How it works
ECU problems can look alike from the driver seat. Whether you need ECU repair, ECU cloning, ECU testing, DTC off, Mercedes EIS cloning, BMW CAS cloning, or a lithium battery reset, we start by checking the module before quoting the final work.
Choose your brand and service, add vehicle and symptom details, and pay the $150 diagnostic fee.
Create your shipping label, pack the module securely, and include your confirmation details inside the box.
Our team checks the module and confirms the supported repair, programming, cloning or testing path before preparing the full estimate.
You receive the final price by email or phone before repair work continues, then pay return shipping when it is sent back.
Pricing and expectations
Paid with the intake form before you ship the module.
Final price depends on damage, module type, parts, and labor.
Original ECU condition, replacement ECU part number, and vehicle data matter.
Customer ships the ECU to the shop and pays return shipping when sent back.
Before you ship
Customers who are ready to mail an ECU usually need practical instructions, not sales copy. These pages explain pricing, packing, shipping, symptoms, and model-specific repair paths.
Nationwide ECU services
No-start, no communication, water damage, sensor, driver, injector, and coil circuit faults.
Local and nationwide programming for new and used replacement modules across all makes and models.
Clone ECU data when a replacement module needs to match the original vehicle setup.
Bench testing for power, ground, CAN, LIN, diagnostic-link, and output-stage concerns.
Diagnostic trouble code service requests reviewed after the ECU and vehicle details are confirmed.
EIS cloning support for Mercedes modules that need matched immobilizer data.
CAS cloning support for BMW vehicles, plus related immobilizer and module matching needs.
Battery reset services for Mercedes, Tesla, BMW, and related module workflows.
Mail-in service for Ford, Dodge, Ram, Chrysler, Jeep, and other high-demand ECU repairs.
Start your repair
Once your intake and diagnostic payment are received, we send confirmation details and nationwide mail-in instructions so your ECU arrives with the right service information.
Customer confidence
See feedback from 28 customers and verify our Humble shop location on Google Maps.
Customers can ship from anywhere in the United States and receive updates by phone or email.
Testing begins within 1–3 business days after arrival, and many approved repairs include a 3-month warranty.
Inside the shop
Our technician team supports all makes and models and reviews the module, its reported symptoms, and the available vehicle information before recommending repair, programming, testing, cloning, or another next step.


We handle intake, ECU testing, repair, cloning, programming, and return recommendations from our Humble, Texas service location. The final service path is confirmed only after the module is evaluated.
Review shipping instructionsBefore you ship
No. The $150 covers intake and diagnostic inspection. The full repair price is quoted separately after we evaluate the ECU.
Yes. Customers can mail in an ECU from anywhere in the United States. Submit the intake, pay the diagnostic fee, create your shipping label, and send the module in for testing.
Use padding on all sides, keep moisture away, and include your name, phone, email, vehicle details, and order confirmation inside the box.
The customer pays to ship the ECU to the shop. Return shipping is billed separately when the module is sent back after diagnosis or repair.
We contact you by your preferred method with the diagnosis, final repair price, and a full invoice for approval.