Delphi DCM3.4 ECU Tuning
Engine control unit used in 26 supported models from 6 makes.
Citroen with the Delphi DCM3.4
All Citroen tunes- Citroen C42005+2.0 HDIAutoTuner
- Citroen C4 Picasso2007+2.0 HDIAutoTuner
- Citroen C52001+2.0 HDIAutoTuner
- Citroen Jumpy2007+II - Phase I · 2.0 HDIAutoTuner
- Citroen Picasso2006+2.0 HDIAutoTuner
Dacia with the Delphi DCM3.4
All Dacia tunes- Dacia Duster2009+I · 1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Dacia Logan2007+1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Dacia Sandero2008+I · 1.5 DCI 8v EU4AutoTuner
Nissan with the Delphi DCM3.4
All Nissan tunes- Nissan Micra2003+1.5 DCI EU4AutoTuner
- Nissan Note2005+1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Nissan NV 2002009+1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
Peugeot with the Delphi DCM3.4
All Peugeot tunes- Peugeot 3072000+2.0 HDIAutoTuner
- Peugeot 3082007+2013 · 2.0 HDIAutoTuner
- Peugeot 4072007+2.0 HDIAutoTuner
- Peugeot 4082010+2.0 HDIAutoTuner
- Peugeot 5082011+Phase 1 · 2.0 HDIAutoTuner
- Peugeot 6072000+2.0 HDIAutoTuner
- Peugeot 8072002+2.0 HDIAutoTuner
Renault with the Delphi DCM3.4
All Renault tunes- Renault Clio2005+III · 1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Renault Fluence2009+1.5 DCI 8v EU4AutoTuner
- Renault Kangoo2007+II · 1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Renault Megane2002+II, III · 1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Renault Modus2004+1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
- Renault Scenic2003+II · 1.5 DCI EU4AutoTuner
- Renault Twingo2007+II · 1.5 DCI 8v EU4, 1.5 DCI EU4AutoTuner
Suzuki with the Delphi DCM3.4
All Suzuki tunes- Suzuki Jimny2006+1.5 DCI EU4AutoTuner
About Delphi DCM3.4 tuning
The Delphi DCM3.4 engine control unit is supported in 26 models from Citroen, Dacia, Nissan, Peugeot, Renault, Suzuki. We read, modify, and flash it with AutoTuner, then verify the result on our Dynojet 424xLC2 in Jenison, MI. A custom calibration optimizes fueling, ignition timing, boost, and torque limits for your exact build.
Don't See Your Vehicle?
These lists cover off-the-shelf tuning platforms. We also do standalone ECU installs and custom calibrations, so reach out and we'll tell you what's possible for your build. Compatibility data last updated 2026-09-24.