The tuning reference
Practical knowledge for identifying hardware, understanding systems and getting the details right. Written and maintained by the Tuning.wales community.
Manufacturers, families, variants & hardware469 pages Engines
Engine reference & specifications103 pages Vehicles
Platforms, fitment & systems0 pages Tuning
Calibration & working methods38 pages Diagnostics
Fault finding & measurements202 pages Tools
Diagnostic tools, flashing and tuning tools & equipment203 pages Reference
Terminology, abbreviations & shared reference8 pages Flash & Device Programmers
Flash, EEPROM, microcontroller and general-purpose device programmers.95 pages Microcontrollers (MCUs)
Processor families, individual chips, architecture and ECU application examples.5 pages Tuning Software
ECU calibration software, map editors and hex editors.10 pages Tuning Tools
ECU and TCU programming equipment, tuning tool makers and related measurement devices.17 pages
Recently updated
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Mitsubishi diagnostic systems
Mitsubishi factory diagnostics including MUT-II, MUT-III and MUT-III SE, plus hardware and coverage notes.
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MG Rover diagnostic systems
MG and Rover TestBook and T4 diagnostic equipment and its Land Rover connection.
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ME7.5 1.8T logging and diagnostic code context
Software-group-specific ME7Logger settings and 1.8T examples showing why an “overboost” code description needs its underlying diagnostic context.
Applies to: Bosch ME7.5
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ME7.1 S4 logging and hardware configuration
S4 M-/K-/L-box logger connection context, S4 boost-diagnostic meanings and the source’s V6 output-configuration layout.
Applies to: Bosch ME7.1
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Mazda diagnostic systems
Mazda IDS, MDARS and MDARS II applications, supported vehicle interfaces and coverage examples.
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Maserati diagnostic tools
Entry point to Maserati factory diagnostics including shared SD3 and Maserati Diagnosi EVO generations.
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Maserati Diagnosi diagnostic system
Maserati Diagnosi and EVO diagnostic generations, compatibility and their relationship to the shared SD3 tester.
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Lexus diagnostic systems
Lexus shares Toyota Techstream diagnostic platforms.
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Land Rover TestBook
The Rover Group and Hewlett-Packard diagnostic and service-information platform used on Land Rover vehicles.
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Land Rover diagnostics
A starting point for Land Rover TestBook and later shared Jaguar Land Rover diagnostic systems.
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Lancia diagnostic tools
Lancia vehicles can use the wiTECH platform.
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Kia diagnostic systems
Kia GDS, KDS and KDS 2.0 diagnostic software and their vehicle communication interfaces.
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Jeep diagnostic tools
Jeep vehicles can use the wiTECH platform.
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Jaguar diagnostics
A starting point for Jaguar factory diagnostic systems and their shared Jaguar Land Rover platforms.
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Jaguar and Land Rover diagnostics
Shared factory diagnostic tools across Jaguar and Land Rover, from TestBook and IDS to SDD and TOPIx Cloud.
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Infiniti diagnostic systems
Infiniti uses Nissan CONSULT diagnostic platforms.
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Hyundai diagnostic systems
Hyundai factory diagnostics from GDS and GDS Mobile to GDS Smart, with vehicle interfaces explained.
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General Motors diagnostic systems
GM factory diagnostic systems including Tech 2, GDS2 and Techline Connect.
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Ford diagnostics overview
Guide to Ford factory diagnostic tools including STAR, WDS, IDS and FDRS.
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Ford Diagnostic and Repair System (FDRS)
Ford's newer factory diagnostic software, introduced alongside IDS for selected 2018 model-year vehicles.
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Fiat diagnostic tools
Entry point to Fiat group Examiner and wiTECH manufacturer diagnostic platforms.
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Ferrari diagnostic tools
Entry point to Ferrari SD3, SDX and DEIS factory diagnostic systems.
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Ferrari and Maserati SD3 diagnostic system
Shared Ferrari and Maserati SD3 factory diagnostic tester and its relationship to earlier SD2 equipment.
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EDC16 diagnostic data and configuration examples
Interpret diagnostic data and review a scoped Citroën EDC16C3/C34 diagnostic and configuration bulletin.
Applies to: Bosch EDC16
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DS diagnostic tools
DS vehicles share the PSA DiagBox platform.
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Dodge diagnostic tools
Dodge vehicles can use the wiTECH platform.
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Dacia diagnostic systems
Dacia shares Renault Group diagnostic systems.
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Citroen diagnostic tools
Entry point to Citroën factory diagnostics, including DiagBox and earlier Lexia software.
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Chrysler diagnostic tools
Chrysler vehicles can use the wiTECH platform.
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Bosch KTS Truck
Bosch vehicle communication equipment for commercial and off-highway diagnostics.
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Bosch KTS diagnostic testers
A chronology and directory of Bosch KTS diagnostic interfaces, handhelds and complete systems.
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Bosch KTS diagnostic packages
Identify Bosch diagnostic bundles and the separate devices inside each one.
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Bosch KTS 8xx systems
Historical Bosch KTS 840, 870 and 890 diagnostic system packages.
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Bosch KTS 590
Bosch wireless ECU interface with two-channel multimeter and oscilloscope.
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Bosch KTS 560
Bosch wireless ECU interface with one-channel multimeter and DoIP.
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Bosch KTS 530
USB KTS 5-series diagnostic module with a one-channel multimeter.
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Bosch KTS 525
Bluetooth PC diagnostic module offered with ESI[tronic] Light.
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Bosch KTS 515
Entry-level global OBD diagnostic interface used in emissions testing.
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Bosch KTS 500 ISA interface
The PC-based KTS 500 diagnostic board and its ISA-era host requirements.
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Bosch KTS 301
The Porsche Systemtester 9288 and the Bosch KTS 301 designation.
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Bosch KTS 300
The original Bosch Hammer handheld electronic control-unit tester.
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Bosch KTS 250
Compact Android-based standalone ECU diagnostic tester.
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Bosch KTS 100 and 115
Early Bosch diagnostic modules used alongside workshop test systems.
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Bosch HTD headlight testers
Bosch headlight beam inspection and adjustment equipment.
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Bosch FWA wheel alignment
Bosch wheel alignment systems and their connection to ADAS calibration.
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Bosch FSA vehicle system analysis
Bosch FSA equipment for testing signals, components and vehicle systems.
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Bosch ESI tronic Windows
The original Windows-generation Bosch workshop information and diagnostics software.
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Bosch ESI tronic software
History and guide to Bosch ESI, ESI[tronic] 2.0 and the current ESI[tronic].
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Bosch ESI tronic DOS
The early CD-ROM Electronic Service Information system for MS-DOS.
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Bosch diesel test benches
Bosch DCI and EPS equipment for off-vehicle diesel component testing.
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Bosch Diagnostics
Directory of Bosch diagnostic, vehicle analysis and workshop testing equipment.
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Bosch DAS driver assistance calibration
Bosch DAS and SCT equipment for ADAS camera and radar calibration.
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Bosch Connected Repair
Bosch software that connects workshop equipment and vehicle service records.
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Bosch BEA emissions analysis
Bosch BEA emissions analysers, modules and supporting OBD equipment.
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Bosch battery and high voltage testing
Bosch BAT low-voltage battery tools and high-voltage diagnostic equipment.
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BMW WinKFP
WinKFP and NFS ECU software programming for applicable BMW vehicles.
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BMW Tool32
ToolSet 32 execution of EDIABAS ECU jobs and controller description files.
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BMW Standard Tools
Overview of BMW's legacy engineering tools and their different diagnostic, coding and programming roles.
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BMW SSS and Progman
Software Service Station and Progman: BMW's separate coding, individualisation and programming system.
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BMW NCS Expert
BMW NCS Expert configuration and coding for applicable legacy vehicles.
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BMW ISTA workshop servers and displays
ISIS, ISID, ISSS and the hardware architecture of early BMW ISTA workshops.
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BMW ISTA Plus
BMW ISTA workshop diagnostics, repair information, programming and access considerations.
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BMW ISTA P
The earlier ISTA/P programming and coding application and its relationship to ISTA diagnostics.
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BMW ISTA D and Rheingold
Early ISTA diagnostics, the ISTA/D and Rheingold names, and the server-based dealer system.
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BMW INPA
BMW INPA diagnostic scripts, EDIABAS communications and interpretation of test results.
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BMW E-Sys
BMW E-Sys engineering software, vehicle orders, control-unit coding and programming data.
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BMW EDIABAS
BMW's diagnostic communication runtime, controller description files and applications.
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BMW diagnostic connections
Choosing the vehicle socket, interface and connection path for BMW diagnostics and programming.
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Audi diagnostic systems
Audi uses Volkswagen Group ODIS Service.
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Aston Martin diagnostic systems
Aston Martin WDS, AMDS and AMDS 2.0, with Ford WDS links.
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Alfa Romeo diagnostic tools
Entry point to Alfa Romeo manufacturer diagnostics shared with Fiat, including Examiner and wiTECH.
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Acura diagnostic systems
Acura shares Honda HDS and i-HDS diagnostic systems.
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Abarth diagnostic tools
Abarth vehicles can use the wiTECH platform.
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Simos 18 tool and file scope
Match Simos 18 tools and file formats to their explicitly documented variants.
Applies to: Simos 18.1Simos 18.10Simos 18.6
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ME7 reading writing and checksums
Read/write preparation, program versus EEPROM backups, definition matching, checksum validation and recovery planning for documented VAG ME7 applications.
Applies to: Bosch ME7.1Bosch ME7.5
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MD1 torque fuel and tuning basics
A practical introduction to diesel MD1 torque requests, torque-to-fuel modelling, injection and related limits.
Applies to: Bosch MD1
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Bosch MD1ECU hub
Bosch MD1 engine-control family, torque-oriented diesel control and its main functions.
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ME7.6.2 Astra VXR Z20LEH tuning guide
Astra VXR Z20LEH ME7.6.2 maps, torque and charge modelling, boost control and diagnostic evidence.
Applies to: Bosch ME7.6.2
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Ford and Volvo ME9.0 tuning guide
A practical Ford and Volvo ME9.0 guide to torque, boost, fuelling, ignition and diagnostic logging.
Applies to: Bosch ME9.0
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Bosch MED9.1ECU hub
MED9.1 direct-injection operation and AXX 2.0 FSI Turbo context, alongside software identification, definitions and research tools.
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EDC16 variant application and tuning differences
Compare EDC16 application evidence, unit-injector and common-rail strategies, communication labels and programming considerations.
Applies to: Bosch EDC16
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Bosch EDC16U40ECU hub
EDC16U40: documented application examples and calibration or identification context.
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Bosch EDC16CP32ECU hub
EDC16CP32: documented application examples and calibration or identification context.
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EDC16 injection systems and vehicle examples
Documented EDC16 unit-injector and common-rail examples, timing feedback and vehicle-specific system details.
Applies to: Bosch EDC16
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ME7.5 1.8T calibration and output configuration
Apply shared fueling/load concepts to identified ME7.5 software and read the qualified seven-byte 1.8T ESKONF example without importing V6 assumptions.
Applies to: Bosch ME7.5
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ME7.1 S4 load torque and ignition examples
M-box load/pressure and torque calculations, cam-dependent ignition, temperature correction and documented interpretation limits.
Applies to: Bosch ME7.1
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ME7.1 S4 fueling and MAF examples
Software-scoped S4 2.7T injector calculations, M-box lambda/definition notes and air-mass interpretation from S4Wiki.
Applies to: Bosch ME7.1
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ME7 ignition and knock reference
Interpret ME7 base timing, optimal timing, temperature correction, knock adaptation and torque intervention as separate contributions.
Applies to: Bosch ME7.1Bosch ME7.5
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ME7 torque load and boost control
Trace the ME7 torque request into permitted load and boost, then distinguish boost targets, feedback control, adaptations and protective intervention.
Applies to: Bosch ME7.1Bosch ME7.5
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ME7 fueling and MAF calibration
Understand injector calibration, MAF conversion, lambda requests, component-protection enrichment and fuel adaptations before changing ME7 fueling.
Applies to: Bosch ME7.1Bosch ME7.5
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ME7 logging and diagnostics
Choose and interpret ME7 logs by separating requests, active limits, modelled values, measured values and control outputs.
Applies to: Bosch ME7.1Bosch ME7.5
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ME7 getting started
A practical ME7 learning and validation sequence: identify software, establish a baseline, understand the models, then change and log one system at a time.
Applies to: Bosch ME7.1Bosch ME7.5
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EDC15 diagnostic data and troubleshooting
How to interpret example diesel fuel quantity, air, timing and cylinder-balance diagnostic values for EDC15 investigations.
Applies to: Bosch EDC15
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BMW M335 engines
BMW M335 engine identification, specifications and recorded variants.
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EDC15 fuel control and tuning basics
A practical introduction to EDC15 injection-quantity requests, limiters, injection hardware and related tuning concepts.
Applies to: Bosch EDC15
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EDC15 injection systems and timing feedback
How documented EDC15 distributor-pump, unit-injector and common-rail examples meter fuel and provide timing feedback, with a Saab VP44 case.
Applies to: Bosch EDC15
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ME7.6 tuning maps torque and boost
A source-scoped ME7.6 tuning guide to map groups, torque, boost and variant differences.
Applies to: Bosch ME7.6
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Simos 19ECU hub
Simos 19 petrol engine management: torque and air modelling, fuelling, ignition and variant-specific references.
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ME7.6 identification and working record
Record the vehicle, ECU, software and evidence needed to match ME7.6 references safely.
Applies to: Bosch ME7.6
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Bosch ME7.6.H4ECU hub
ME7.6.H4 / ME7.6H4 identification and Opel / Vauxhall application examples.
Make it verifiable. Record the exact hardware or vehicle variant, label photographs clearly and include sources. Leave uncertain details open for the next contributor.