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Automotive RepairDiagnostics & Troubleshooting3MediumCar Owner/DIY Mechanic$ implied

Diagnosing persistent engine issues (rough acceleration, fuel smell, oil in intake) on a VW Polo GTI despite replacing parts and finding one vacuum leak.

Existing solutions (sensor replacement, spacer) provide partial fixes but don't address root cause; still have issues under heavy acceleration and oil in intake. No integrated diagnostic guide for this specific engine.

Severity

3Medium

Willingness to Pay

implied

Added

Apr 29, 2026

Workarounds Described

Replaced MAP sensor hoping to fix codes
Installed O2 spacer to suppress CEL
Temporarily glued broken vacuum hose

Implied Software Gaps

Diagnostic app that interprets multiple fault codes and suggests root cause prioritization
Integrated step-by-step repair guide with part numbers for specific engine
Live OBD-II data analysis with context-aware troubleshooting

App Concept

EngineDiagnose Pro

An AI-powered diagnostic assistant for car enthusiasts and DIY mechanics that guides step-by-step troubleshooting for specific engine codes and symptoms. Uses a database of known failure patterns (like PCV failures on VW 1.4 TSI) and suggests part replacement priorities, saving hours of guesswork.

Key Features

Symptom-to-code matching with known failure patterns
Step-by-step diagnostic workflow with part replacement recommendations
Integration with OBD-II scanners for live data analysis
Community-verified repair tips and common gotchas per engine model

Target Users: DIY car mechanics and enthusiasts working on Volkswagen/Audi 1.4 TSI and similar turbocharged engines

Revenue Model: $9.99 per single diagnostic report, or $19.99/mo subscription for unlimited diagnostics and live data analysis

Existing Solutions Mentioned

MAP sensor replacementO2 spacer installationbroken vacuum hose repair

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