Remanufactured Ford 6.0L FICM - 2005-2010 - Tuning Options Available

This Synapse reman 6.0L FICM is built specifically for late‑build 6.0L Powerstroke trucks—2005–2007 Super Duty and 2004–2010 E‑Series vans—that use the updated FICM strategy and hardware. The module is fully disassembled, repaired at known failure points, load‑tested to confirm proper output voltage and injector control, and then programmed with either a stock‑equivalent calibration or one of several Power Hungry Performance (PHP) tune options. For customers who want more than a simple stock replacement, optional 58V PHP tunes can transform throttle response, cold‑start quality, and power delivery without requiring a separate tuning device.

This unit is ideal for owners dealing with hard cold starts, rough idle, injector circuit codes, or P0611 FICM performance faults, and for those who want to upgrade to a tuned FICM while replacing a failing factory module.

Fitment and build‑date info

• 2005–2007 Ford F‑250 6.0L Powerstroke

• 2005–2007 Ford F‑350 6.0L Powerstroke

• 2005–2007 Ford F‑450 / F‑550 6.0L Powerstroke (as equipped)

• 2004–2010 Ford E‑Series (E‑250/E‑350/E‑450) 6.0L Powerstroke

This listing covers late 2005 and newer 6.0L vehicles that use the final‑generation FICM strategy.

To make sure this is the correct FICM version:

• Check the driver’s door jamb build‑date sticker. This part is intended for:

  • All 2005–2007 Super Duty 6.0L trucks

  • 2004–2010 6.0L E‑Series vans

• Use this simple guide across the three Synapse FICM offerings:

  • 2003 Early Build: trucks built before 9/22/2003 (early‑build FICM).

  • 2003–2004: trucks built from 9/23/2003 through the end of the 2004 model year (mid‑generation FICM).

  • 2005–2009: all 2005–2007 model‑year trucks and 2004–2010 with your VIN for help determining the correct FICM.

PHP FICM tuning options

You can order this Synapse FICM in a 48V stock‑style configuration or upgrade to a 58V PHP‑tuned version. The 58V units are designed to improve injector performance, especially on cold starts and higher‑power builds.

Available PHP tune profiles:

• Economy Tune

  • No major horsepower increase.

  • Sharper throttle response, better drivability, and potential fuel economy gains.

  • Enhanced cold starting and reduced injector “buzz.”

  • Ideal for trucks that already have aggressive ECM tuning and need improved drivability rather than more fueling from the FICM.

• Atlas 40 Tune

  • Approximately +40 HP potential with much better off‑idle response.

  • Strong, smooth power from idle through around 3,500 rpm.

  • Slight improvement in fuel economy when driven moderately.

  • Excellent choice for mild to heavy towing and for trucks that are watching EGTs; works well on engines without head studs.

• Atlas 80 Tune

  • Roughly +80 HP potential with more aggressive fueling.

  • Very noticeable throttle response and mid‑range performance gains.

  • Best suited to daily driving and light towing.

  • For heavy towing, head studs and EGT monitoring are strongly recommended.

• Hercules Tune

  • Maximum performance option, typically in the +100 HP range.

  • Designed for drag racing and performance builds.

  • Not recommended for towing due to elevated EGTs.

  • Requires head studs, upgraded exhaust, good cooling, and an EGT probe; best for competition‑focused trucks.

All PHP tunes are engineered to work with stock or modified ECM tuning, and all versions—stock or tuned—undergo performance testing on the bench to verify that FICM voltage and injector control are stable under load before shipping.

Technical specs and cross‑references

• Application: 2005–2007 Ford 6.0L Powerstroke (F‑Series) and 2004–2010 6.0L E‑Series

• Operating voltage: 48V (stock) or 58V (optional upgrade)

• OEM / aftermarket cross‑references typically include (but are not limited to):

  • Ford OE / service: 4C3Z12B599ABRM, 4C3Z12B599AB, 4C3Z12B599ERM, 4C3Z12B599ARM, HC3Z12B599CRM

  • Aftermarket / reman catalog: AP35124, AP65124N, FICM3, FIC02024, FIC02027, 921‑124, 7859‑PP, SD‑FICM‑FORD‑05, SD‑FICM‑48, SDG‑FICM‑48, DT600008R

• UPC: 645716739105

• Approximate weight: about 6 lb

• Approximate package dimensions: about 4" x 15" x 10"

Always match at least one OE or cross‑reference number from your original module or parts catalog when possible.

Common trouble codes associated with a failing FICM

This 2005–2009 Synapse FICM is commonly used to resolve FICM‑related fault codes such as:

Direct FICM and power codes:

• P0611 – Fuel Injection Control Module Performance

• P1378 – FICM Supply Voltage Circuit Low

• P1379 – FICM Supply Voltage Circuit High (less common)

Injector circuit codes often related to FICM output issues:

• P0261, P0264, P0267, P0270, P0273, P0276, P0279, P0282 – Injector Circuit Low (Cylinders 1–8)

• P0262, P0265, P0268, P0271, P0274, P0277, P0280, P0283 – Injector Circuit High (Cylinders 1–8)

Contribution/balance codes that can be influenced by FICM performance:

• P0263, P0266, P0269, P0272, P0275, P0278, P0281, P0284 – Cylinder Contribution/Balance (Cylinders 1–8)

These codes can have multiple causes (fuel pressure, injectors, wiring, compression), but when they appear alongside low FICM voltage, hard starts, and rough running, the FICM becomes a primary suspect.

Common symptoms this FICM and tuning address

Drivers shopping for this module typically experience:

• Hard cold starts or long crank times, especially in cold weather

• Rough idle and misfires when cold that smooth out once the engine warms up

• Loss of power, flat throttle response, and poor drivability under load

• Loud injector “buzz” or ticking from the valley area

• Random stalling, cutting out, or intermittent no‑start with FICM and injector‑related codes

Replacing the failing factory module with a reman Synapse FICM—stock or PHP‑tuned—addresses the electronic side of these issues once basics like batteries, alternator output, fuel pressure, and wiring integrity have been checked.

Warranty and core policy

• Warranty
  Synapse remanufactured FICMs include a 1‑year warranty for the original purchaser against defects in materials and workmanship of the module itself. This warranty covers internal failure of the FICM and does not cover damage caused by low system voltage, weak batteries, charging system faults, wiring issues, contamination, improper installation, or abuse.

• Core charge
  A refundable core charge is collected at the time of purchase. Once your original 6.0L FICM core is returned within the required time frame and passes inspection as rebuildable, the core charge is credited back. As with most diesel electronics, once installed the FICM is non‑returnable except through the warranty process.

Why choose this 2005–2010, tuning‑optional FICM

• Covers 2005–2007 Super Duty and 2004–2010 E‑Series 6.0L Powerstroke applications in a single, clearly defined part number.

• Offers both stock‑style replacement and high‑performance PHP tuning in 48V or 58V configurations.

• Restores reliability to a known weak point on the 6.0L platform while giving you the option to significantly improve drivability, cold‑start performance, and power delivery.

• Built and tested as a true remanufactured module, not a simple reflash or unknown salvage part.