Technical cases and real workshop jobs
Real workshop cases: diagnostics, electronics repair, ECU programming, AdBlue, DPF, EGR and other technical solutions.
FILTER WORK
Peugeot — Exhaust Particle Test After Installing an Aftermarket DPF
A Peugeot received a used aftermarket DPF and underwent exhaust particle testing. AUTOCHIP.LV explains the results and how engine oil consumption can shorten DPF life.
Volvo ECU Remap Gone Wrong — High Fuel Consumption and Incorrect Engine Calibration
A Volvo suffered poor performance and high fuel consumption after ECU remapping. AUTOCHIP.LV found incorrect injection duration settings and altered temperature limiters.
BMW X5 3.0 Diesel — Stage 1 ECU Remap, xHP Stage 3 and Dyno Results
Custom Stage 1 ECU remap for a BMW X5 3.0 diesel with DPF retained. Dyno results increased from around 225 to 266 hp and 522 to 562 Nm, plus xHP Stage 3.
Volkswagen Amarok — Poor ECU Remapping, Disabled EGR and DPF Problems
Volkswagen Amarok diagnostics revealed an unknown ECU remap, disabled EGR and modified DPF temperature control. Exhaust particle readings reached several million.
Peugeot AdBlue Fault — 800 km Until Engine Restart Is Blocked
A Peugeot with over 243,000 km displayed an AdBlue fault and an 800 km engine restart countdown. Understanding SCR faults, diagnostics and repair options.
BMW X3 3.0d — Cracked DPF, EGR Faults and ECU Programming
BMW X3 3.0d with a cracked DPF, EGR-related faults and other diagnostic codes. AUTOCHIP.LV performed OBD ECU programming and a road test with datalogging.
Lancia Thema 3.0 CRD — Stage 1 ECU Remap and Dyno Results
Lancia Thema 3.0 CRD Stage 1 ECU remapping with dyno testing. Measured output increased to 250 hp and 607 Nm of torque.
BMW, Mercedes-Benz and Volkswagen — Deep Idle Sound Before and After
Deep Idle sound tuning for BMW, Mercedes-Benz and Volkswagen. Compare engine idle sound before and after the modifications.
Mercedes-Benz S-Class 3.0 CDI — Stage 1, DPF, EGR and High Intake Air Temperature
Mercedes-Benz S-Class 3.0 CDI DPF, EGR and intake flap software work, Stage 1 dyno results of 233 hp and 537 Nm, and diagnosis of 77°C intake air temperature.
BMW Stage 1 ECU Remapping, Deep Idle Sound and DPF & EGR Modifications
BMW X5 and E60 tuning projects at AUTOCHIP.LV, including Stage 1 ECU remapping, Deep Idle sound, DPF removal and EGR software changes. Reported output: 350 hp and 700 Nm.
€300 Power Box Tested on a Dyno — Is the Power Gain Worth It?
Does a €300 Power Box really work? AUTOCHIP.LV dyno test reveals +18 hp and +8 Nm. Comparing a plug-in tuning box with professional ECU remapping.
Advanced BMW Diagnostics — How Data Logging Revealed Engine Power Loss
A twin-turbo BMW produced only 277 hp instead of the expected 313–316 hp. AUTOCHIP.LV examines boost control, fuel system data logs and ECU tuning results.
BMW Deep Idle, Hard Cut and Exhaust Flames
BMW tuning in Riga featuring Deep Idle, aggressive Hard Cut, Pop & Bang and exhaust flame effects. Hear the difference before and after.
BMW 325d Deep Idle — Deeper Diesel Sound and 714 Nm of Torque
BMW 325d Deep Idle and Popcorn tuning with ECU calibration improvements. Torque increased from 675 to 714 Nm, with previous Check Engine warnings addressed.
Kia Sorento Stage 1 — 30 HP and 84 Nm Gained with Emissions Equipment Retained
Kia Sorento Stage 1 ECU tuning and dyno results. Power increased from 109 to 139 hp and torque from 263 to approximately 347 Nm, with emissions systems retained.
BMW 530d GT — Damaged DPF and Why the Catalytic Converter Matters
BMW 530d GT with a severely damaged diesel particulate filter. Why the oxidation catalyst should be assessed separately and preserved when functional.
BMW Stage 1 and xHP — Engine ECU and Automatic Gearbox Tuning
BMW Bosch EDC17 bench programming, mild Stage 1 ECU calibration, DPF/EGR software changes and xHP automatic transmission tuning explained.
BMW X5 3.0d — Hybrid Turbo Tuning, Stage 1 ECU Remap and xHP Stage 3
BMW X5 3.0d hybrid turbo tuning with custom ECU calibration, dyno testing and xHP Stage 3 gearbox software. Final result: 265 hp and 614 Nm.
Audi Failed Its Inspection Due to White Smoke — What Was Wrong with the ECU Software?
Diesel Audi failed inspection due to excessive visible smoke. AUTOCHIP.LV found incorrect DPF software changes and heavily modified injection duration calibration.
Opel Insignia — €600 DPF Reduces Particle Count from 13 Million to 5,000–7,000
JMG aftermarket DPF fitted to an Opel Insignia. Particle readings dropped from over 13 million to around 5,000–7,000 after installation and ECU software work.
BMW X5 3.0d — correcting a previous Stage 1 tune: nearly 260 hp and 570 Nm
BMW X5 3.0d Stage 1 remap correction with 4WD dyno testing. Power improved from 244 to nearly 260 hp, with torque increasing from 541 to 570 Nm.
Mercedes-Benz C-Class 2.2 CDI Stage 1 — 180 hp and 546 Nm with DPF and EGR retained
2011 Mercedes-Benz C-Class 2.2 CDI Stage 1 ECU tuning with Delphi CRD3. Dyno-tested increase from 157 to 180 hp and 473 to 546 Nm, with DPF and EGR retained.
Engine diagnostics under load — what can data logs reveal?
How engine data logging reveals turbo boost, DPF and performance issues. Real Mercedes and Audi diagnostic examples under load.
BMW X5 3.0d Stage 1+ — more power with less boost and fuel
BMW X5 3.0d ECU remapping optimization. Three calibrations compared on a 4WD dyno, with reduced boost and fuel delivery. Final result: approximately 276 hp and 630 Nm.
2017 Volvo 2.0D — cracked DPF: why cleaning will not fix the problem
2017 Volvo 2.0D diesel particulate filter inspection. Cracks found in the DPF and soot deposits downstream. Why DPF cleaning cannot repair structural damage.
BMW X5 3.0d — incorrect DPF and EGR coding, blue-grey smoke and suspected injector problems
BMW X5 3.0d with blue-grey smoke, vibration and hard starting. Incomplete DPF/EGR software changes were corrected, but further injector diagnostics were recommended.
Volkswagen Touareg 3.0 TDI Stage 1 — 318 hp and 643 Nm after ECU tuning
2019 VW Touareg 3.0 TDI Stage 1 ECU and gearbox tuning. Before-and-after 4WD dyno testing: power increased from 281 to 318 hp.
Does disabling AdBlue affect the diesel particle test? A real measurement after ECU programming
Diesel particulate number testing after AdBlue/SCR software deactivation on an ACDelco E98 ECU. Understanding SCR, DPF and the measured exhaust particle result.
BMW 318d E91 Stage 1 — nearly 176 hp after ECU remapping and fuel system diagnostics
BMW 318d E91 2.0 diesel Stage 1 ECU remapping with 4WD dyno testing. Power increased from 142 to nearly 176 hp, with DPF, EGR and fuel system checks.
Ford failed its emissions inspection with an opacity reading of 12.332 — ECU calibration reduced it to 0.53
A 2017 Ford failed its CSDD diesel emissions test with an opacity coefficient of 12.332. After two ECU calibration versions, readings fell to 0.59, 0.56 and 0.53.