DOCUMENT TECHNICAL CONTENTS & VERIFIED SCHEMATIC / PCB PREVIEW
VERIFIED ENGINEERING SPEC
This 2-page technical case study details the diagnosis of DTC 2B55 (Air Mass Metering) on a BMW E87 120. It documents the step-by-step process of identifying a collapsed vacuum pump hose as the root cause of high air mass readings.
WHAT IS INSIDE THIS DOCUMENT (CIRCUITS, PINOUTS & SECTIONS):
- DTC 2B55 Air Mass Metering diagnosis
- HFM data stream analysis (14KG/H)
- Vacuum pump hose inspection
- Valve cover and PCV system repair
1. TECHNICAL PASSPORT & EXTRACTED ROM IDENTIFIERS (BINARY TRUTH)
SKU: ECU-120153
| Vehicle brand & model / Engine | BMW / MINI |
|---|---|
| ECU family & processor (MCU) | OEM ECU & Electronic Modules / OEM MCU |
| Internal ROM project (Project ID) | — |
| Calibration identifier (STC) | — |
| Bosch software number (10SW / 1037) | — |
| Bosch hardware number (0281 / 0261) | — |
| Compatibility code block (CompID) | — |
| Engineering file name | BMW E87 120 DTC 2B55 Air Mass Metering Fault Diagnosis and Repair Case (2p PDF) [#120153] |
| Category / Package | manual_pdf / generic-ecu |
| Exact size & SHA-256 checksum | 113,411 bytes • c50928c55e811003828cf84cd544c91bc628a87db906738ba26bf2ef9cd6209c |
3. FREQUENT ENGINEERING QUESTIONS ABOUT THIS FILE (SCHEMA.ORG FAQPAGE)
E-E-A-T INDEX
Q: Which ECU and engine is the file BMW E87 120 DTC 2B55 Air Mass Metering Fault Diagnosis and Repair Case (2p PDF) [#120153] (2B55) for?
This engineering .PDF file targets the OEM ECU & Electronic Modules control unit (OEM MCU MCU) used on BMW / MINI vehicles. Extracted ROM markers: 2B55.
Q: Is the dump BMW E87 120 DTC 2B55 Air Mass Metering Fault Diagnosis and Repair Case (2p PDF) [#120153] verified for authenticity and checksums?
Yes. The automated ROM analyzer verified the size (113,411 bytes), the SHA-256 checksum (c50928c55e811003828cf84c) and the internal firmware project identity (OEM ECU & Electronic Modules).
Q: What wiring diagrams, pinouts and fault codes are inside the document BMW E87 120 DTC 2B55 Air Mass Metering Fault Diagnosis and Repair Case (2p PDF) [#120153]?
This technical document (BMW E87 120 DTC 2B55 Air Mass Metering Fault Diagnosis and Repair Case (2p PDF) [#120153]) contains wiring diagrams, ECU connector pinouts for OEM ECU & Electronic Modules and diagnostic test procedures for BMW / MINI .
4. ALL RELATED FILES OF THIS FOLDER, BRAND & ECU (FIRMWARE, MAPS, DIAGRAMS, CODING & VIDEOS)
BUNDLE: generic-ecu
WHOLESALE PACK -95% (ALL FILES AT ONCE)
DEDUPLICATED • VERIFIED (COPIES REMOVED: 0)
Download the whole set of related files (42 unique files in one archive)
Individually, all 38 paid files cost $3,205. Buying the whole pack applies the wholesale discount -95% (save $3,040) + 4 free diagrams/photos!
Retail total: $3,205
$165
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