SID804 ECU: Professional Chip Tuning File Service for Ford & PSA 1.4L HDi/TDCi Diesel Engines

Siemens's SID804 ECU is the engine control unit used in Ford and PSA (Citroën-Peugeot) vehicles with 1.4L HDi/TDCi diesel engines. Used in compact hatchback and SUV models, this ECU manages the performance of Ford-PSA partnership's small and efficient diesel engines.

As OnlineChipTuning, we offer custom file services prepared from scratch by our engineers for your Ford and PSA vehicles. By analyzing the complex Common Rail injection, turbo boost, DPF, and EGR control maps of the SID804 ECU, we ensure you get maximum power and efficiency within the engine's safe limits.

This page details the technical capacity of the SID804 ECU, supported models, and the Stage 1 and Stage 2 advantages you'll gain by submitting files through OnlineChipTuning.com.

SID804 ECU Technical Specifications and Potential

The SID804 is a powerful engine control unit produced by Siemens, used especially in Ford-PSA partnership vehicles. This ECU manages 1.4L HDi/TDCi diesel engines producing power in the approximately 68-70 HP range. HDi is PSA's High pressure Direct injection technology. TDCi is Ford's Turbo Diesel Common rail injection technology. DV4TD is PSA's 1.4L diesel engine code. F6JA/F6JB are Ford's 1.4L Duratorq diesel engine codes. Thanks to Ford-PSA partnership, the same engine is used in different brands. The original file you upload to our platform is processed with professional software like WinOLS and ECM Titanium to reveal this ECU's hidden potential.

Main optimizations we offer on this ECU:

Ford-PSA partnership vehicles optimization
Optimization of Common Rail injection pressure and timing
Safe increase of turbo boost pressure
DV4TD 1.4L PSA engine settings
F6JA/F6JB 1.4L Ford Duratorq engine optimization
Small diesel engine efficiency balance

Which Models Feature SID804?

This ECU is used in Ford-PSA partnership vehicles:

Supported Vehicles

Citroën C3 1.4 HDi 68HP
Ford EcoSport 1.4 TDCi 68HP
Ford Fiesta 1.4 TDCi 68-69HP
Ford Fusion 1.4 TDCi 68HP
Peugeot 1007 1.4 HDi 70HP

In these vehicles, the SID804 can offer remarkable power increases with software, especially with DPF and EGR system optimization. 1.4L HDi/TDCi engines +15/25 HP increases are possible.

Increase the 1.4L Diesel Performance of Your Ford or PSA Vehicle. For Engineering Marvel Files; Register Now and Upload Your File

Why Customized Chip Tuning?

Factory software is left conservative considering emission standards and small engine character. OnlineChipTuning shapes the file you read from your vehicle according to your requests.

Advantages of our customized service:

Optimizes compact hatchback performance in Fiesta.
Preserves French design comfort in C3.
Preserves efficiency balance of 1.4L diesel engines.
Unlocks torque potential of Ford-PSA partnership engine.
Balances fuel consumption through more efficient combustion.
Preserves partnership engineering quality.

SID804 Stage 1 and Stage 2 Differences

Customized Stage 1

Power achieved only through software without any part replacement on the vehicle. Emission systems remain in original condition. Safe performance increase is targeted without shortening engine life.

Safe & Stable Power/Torque Increase (+15-20 HP)
HDi/TDCi Common Rail Optimization
Sharper Throttle Response
Small Engine Efficiency Protected

Customized Stage 2

Specific to vehicles with modifications such as DPF Delete and EGR Off. Maximum torque is unlocked by freeing 1.4L diesel engine from all emission restrictions.

DPF / FAP Completely Off
EGR Valve Deleted
Maximum Torque and Horsepower (+25-35 HP)
Fiesta/C3 1.4 Maximum Performance

Special Solutions Offered with OnlineChipTuning

Since SID804 ECU covers Ford-PSA partnership vehicles, we offer all special solutions:

DPF / FAP OFF: Complete shutdown of particulate filter system.
EGR OFF: Disabling the exhaust gas recirculation valve.
VMAX OFF: Removal of factory speed limiter.
Lambda / O2 Delete: Turning off the check engine light.
MAF Sensor Delete: Cancellation of mass air flow sensor errors.
1.4 HDi Power: PSA 1.4L HDi engine optimization.
1.4 TDCi Power: Ford 1.4L TDCi Duratorq engine optimization.
DV4TD Engine: PSA DV4TD engine settings.
F6JA/F6JB Engine: Ford Duratorq engine optimization.
Partnership Quality: Ford-PSA partnership standard protected.

Custom File Preparation Process for Your Vehicle

The process is shaped according to your brand and engine code. Our engineers identify the engine code (DV4TD/F6JA/F6JB) and send the file back to you.

Why Us?

24/7 File Service: Fast turnaround time (average 2-4 hours).
Ford-PSA Expertise: Ford-PSA partnership special experience.
1.4 Diesel Knowledge: 1.4L HDi/TDCi engine family knowledge.
Siemens SID Experience: Siemens SID804 ECU specialization.
DV4TD Focus: PSA DV4TD engine optimization expertise.
Duratorq Expert: Ford Duratorq diesel engine experience.
Multi-Brand: Ford and PSA brands support.
Small Diesel: Small diesel engine efficiency management.

Expert Advice: The SID804 is a powerful Siemens-produced ECU used in Ford-PSA partnership vehicles. HDi is PSA's High pressure Direct injection technology. TDCi is Ford's Turbo Diesel Common rail injection technology. DV4TD is PSA's 1.4L diesel engine code (68-70 HP). F6JA/F6JB are Ford's 1.4L Duratorq diesel engine codes (68-69 HP). Thanks to Ford-PSA partnership, the same engine is used in different brands (engine sharing). Fiesta and C3 share the same platform. Duratorq is Ford's diesel engine brand. OnlineChipTuning offers safe performance in Ford-PSA 1.4 diesel vehicles with SID804 experience.

Your Professional Tuning Solution Partner

You're in the right place to reveal the true potential of your Ford or PSA's 1.4L HDi/TDCi diesel engine. With our team specialized in the SID804 ECU, we offer the most suitable, customized software solution for your vehicle.

For Files Specially Prepared for Your Vehicle by Our Engineers Create Your Customized File Within Minutes

What is SID804 ECU? Chip Tuning and Online File Solutions