Diesel ECM, PCM & FICM Repair — Mail-In Bench Service
Duramax · Powerstroke · Mopar diesel · Sprinter CDI · TDI — board-level repair, cloning and bench programming
Diesel control modules fail differently from petrol ones, mostly because of what they are asked to drive. High-current injector output stages, long duty cycles, sustained underhood heat and — in the salt states — twenty years of corrosion at the connector all take their toll on the same handful of places on the board.
That is what a bench repair targets. Not the whole module, which is rarely the thing that failed, but the driver stage, the supply section, or the joints behind them that finally opened after enough thermal cycles.
One boundary, stated plainly because a diesel page is exactly where the request arrives: we do not offer DPF, EGR, DEF or AdBlue deletes on any platform, and we will not modify a module to disable emissions equipment. If that is what you are looking for, we are not the right lab.
Diesel platforms we work on
Pick your platform. Every row links to a service we actually sell, or says plainly that we do not cover it.
| Generation | Years | What's different | Module | Our service |
|---|---|---|---|---|
| Duramax LB7 / LLY | 2001-2005 | Separate FICM drives the injectors. Board-level repair of the driver and supply sections. | Fuel Injection Control Module | Duramax LB7 / LLY FICM Repair$499.95 flat |
| Duramax LBZ | 2006-2007 | Injector drivers integrated into the ECM. Dead modules, no-communication faults and driver failures. | E35 engine control module | Duramax E35 ECM Repair (2006-2007)$499.95 flat |
| Duramax LMM | 2007.5-2010 | The emissions-era Duramax. Same integrated-driver architecture, its own hardware. | E35B engine control module | Duramax E35B ECM Repair (LMM)$499.95 flat |
| Ford 6.0 Powerstroke | 2003-2010 | The FICM power-supply rebuild — hard cold starts, rough running, no-start with a sagging FICM voltage. | Fuel Injection Control Module | Ford 6.0 Powerstroke FICM Repair$249 flat |
| Ford 6.7 Powerstroke | 2011-2016 | PCM board-level repair — dead modules, lost communication, crank-no-start with no fuel commanded. | Powertrain control module | Ford 6.7 Powerstroke PCM Repair$395 flat |
| Mopar diesel (Cummins-powered Ram) | By module label | Bench cloning of the diesel ECM onto a donor so a replacement works with your truck. | Diesel engine control module | Mopar Diesel ECM Clone & P0610 Repair$250 flat |
| Mercedes Sprinter CDI | By module label | CDI engine control module cloning for the Sprinter van platform. | CDI engine control module | Sprinter / Mercedes CDI ECM Clone$250 flat |
| Cummins CM-family controllers | CM2200 / CM2350 / CM2450 | Board-level repair of the standalone Cummins engine controllers used in commercial and heavy-duty applications. | Cummins engine control module | In development. We are validating a bench process on the CM controller family and are not accepting these modules yet — text us and we will tell you exactly where we stand. |
| Heavy truck (PACCAR, Detroit, Caterpillar) | Class 8 applications | MX-13, DDEC IV/V and the Caterpillar engine-controller families. | Heavy-truck engine controllers | Under feasibility assessment, not offered. Class 8 controllers are a step up in complexity and consequence, and we will only offer this if we can do it properly. |
Separate FICM drives the injectors. Board-level repair of the driver and supply sections.
Module: Fuel Injection Control Module
Injector drivers integrated into the ECM. Dead modules, no-communication faults and driver failures.
Module: E35 engine control module
The emissions-era Duramax. Same integrated-driver architecture, its own hardware.
Module: E35B engine control module
The FICM power-supply rebuild — hard cold starts, rough running, no-start with a sagging FICM voltage.
Module: Fuel Injection Control Module
PCM board-level repair — dead modules, lost communication, crank-no-start with no fuel commanded.
Module: Powertrain control module
Bench cloning of the diesel ECM onto a donor so a replacement works with your truck.
Module: Diesel engine control module
CDI engine control module cloning for the Sprinter van platform.
Module: CDI engine control module
Board-level repair of the standalone Cummins engine controllers used in commercial and heavy-duty applications.
Module: Cummins engine control module
MX-13, DDEC IV/V and the Caterpillar engine-controller families.
Module: Heavy-truck engine controllers
Services in this category
Every one is a flat price, mail-in from any US state.
Duramax LB7 / LLY FICM Repair
No-start, dead miss, or a Duramax that runs rough on half its cylinders? On an LB7 or LLY the injector drivers live in a separate FICM — we repair that module on the bench and send your original back.
Duramax E35 ECM Repair (2006-2007)
No communication, a dead ECM, or injector-driver faults on a 2006-2007 Duramax? The E35 puts the injector drivers inside the ECM — we repair that board and return your original, VIN and calibration intact.
Duramax E35B ECM Repair (LMM)
LMM Duramax down with a dead ECM, no communication, or injector-driver faults? We repair the E35B at board level and send your original back with its calibration intact.
Ford 6.0 Powerstroke FICM Repair
Hard start, rough idle, or no-start on your 6.0 Powerstroke? The FICM is the usual suspect — we rebuild its failed power supply on the bench and ship it back stronger.
Ford 6.7 Powerstroke PCM Repair
Dead PCM, no communication, or a 6.7 Powerstroke that cranks and will not fuel? We repair the powertrain control module at board level and return your original.
Mopar Diesel ECM Clone & P0610 Repair
Liberty CRD throwing P0610 and refusing to behave, or an EcoDiesel that cranks and won't start after a used ECM went in? Mail in the module and we repair the corrupted options data or clone your identity onto a matched donor on the bench — immobilizer and options work only, never an emissions edit.
Sprinter / Mercedes CDI ECM Clone
Dropped a used engine computer into your Sprinter or CDI Mercedes and now it cranks forever but never fires? The ECM carries the immobilizer relationship with the EIS/SKREEM, so a donor from another van will never start yours until the data is moved across. Mail in your original plus a matched donor and we clone identity, immobilizer, and calibration on the bench.
Frequently asked
Still not sure which module you need? Text us your VIN — replies in minutes.
Do you offer DPF, EGR or DEF deletes?
How do I know whether my problem is the module at all?
Will I get my own module back?
How long does a diesel bench repair take?
Do you work with shops and fleets?
Where is the work done?
Also see
Not sure which module you need?
Send us your VIN and a photo of the module label. We confirm which one you have before you remove anything — free, usually within minutes, and we will tell you if the answer is that you do not need us.