Car engine idles too high and won't reach operating temperature despite replacing thermostat, sensor, and cleaning components.

Workarounds Described

• jumped TEN and GND pins to set idle manually
• smoke tested for vacuum leaks
• cleaned IACV and replaced gasket
• tested TPS with multimeter but got no voltage
• redlined engine trying to warm it up

Implied Software Gaps

• Diagnostic software that correlates idle RPM with engine temperature and suggests specific sensor checks
• Interactive troubleshooting tree that adapts based on user inputs and eliminates confirmed causes
• Data logging tool to capture and compare sensor readings (O2, coolant temp, IACV position) over time

AutoDiag Pro

A mobile app that guides DIY mechanics through complex car diagnostics by combining sensor data, symptom input, and a knowledge base. It suggests probable causes and tests, eliminates confirmed components, and logs workarounds to share with the community.

Existing Solutions Mentioned