P0420 Catalyst Efficiency Bank 1·
P0300 Random Misfire Detected·
P0171 System Too Lean Bank 1·
P0302 Cylinder 2 Misfire·
P0455 Large EVAP Leak·
P0430 Catalyst Efficiency Bank 2·
P0442 Small EVAP Leak·
P0101 MAF Sensor Range·
P0440 EVAP System Malfunction·
P0128 Coolant Below Threshold·
P0507 Idle Control High RPM·
P0301 Cylinder 1 Misfire·
P0174 System Too Lean Bank 2·
P0340 Camshaft Sensor Circuit A·
P0303 Cylinder 3 Misfire·
P0304 Cylinder 4 Misfire·
P0335 Crankshaft Sensor A·
P0401 EGR Flow Insufficient·
P0113 IAT Sensor High Input·
P0141 O2 Heater Circuit Bank 1 S2·
P0011 Cam Timing Over-Advanced·
P0446 EVAP Vent Control Circuit·
P0496 EVAP High Purge Flow·
P0016 Crank/Cam Correlation·
P0606 ECM/PCM Processor Fault·
P0420 Catalyst Efficiency Bank 1·
P0300 Random Misfire Detected·
P0171 System Too Lean Bank 1·
P0302 Cylinder 2 Misfire·
P0455 Large EVAP Leak·
P0430 Catalyst Efficiency Bank 2·
P0442 Small EVAP Leak·
P0101 MAF Sensor Range·
P0440 EVAP System Malfunction·
P0128 Coolant Below Threshold·
P0507 Idle Control High RPM·
P0301 Cylinder 1 Misfire·
P0174 System Too Lean Bank 2·
P0340 Camshaft Sensor Circuit A·
P0303 Cylinder 3 Misfire·
P0304 Cylinder 4 Misfire·
P0335 Crankshaft Sensor A·
P0401 EGR Flow Insufficient·
P0113 IAT Sensor High Input·
P0141 O2 Heater Circuit Bank 1 S2·
P0011 Cam Timing Over-Advanced·
P0446 EVAP Vent Control Circuit·
P0496 EVAP High Purge Flow·
P0016 Crank/Cam Correlation·
P0606 ECM/PCM Processor Fault·
AI car diagnosis in 30 seconds. First cause is free, no credit card. Full report $5.99 - less than a cup of coffee, a fraction of a shop diagnostic fee.
| Feature | AmpAuto | MECH AI | SPARQ | Carista | VehicleScore |
|---|---|---|---|---|---|
| AI Diagnostic Reasoning (visible) | ✓ | ✗ | ✗ | ✗ | ✗ |
| OEM-Specific Steps with Specs | ✓ | Partial | ✗ | ✗ | ✗ |
| Live NHTSA Recall + Complaint Data | ✓ | ✗ | Recalls only | ✗ | ✗ |
| Built-in Shop / Work Order Management | ✓ | ✗ | ✗ | ✗ | ✗ |
| AI Customer Message Generator | ✓ | ✗ | ✗ | ✗ | ✗ |
| Probability-Ranked Causes | ✓ | ✓ | ✗ | Partial | ✗ |
| Works on Desktop (Shop Computer) | ✓ | ✓ | iOS only | ✓ | ✓ |
| Free First Diagnosis | ✓ | ✗ | ✗ | ✗ | ✓ |
No credit card. No account. Enter your DTC code and vehicle, get a diagnosis in under a minute. Shops charge $80-$150 just to tell you what you can know right now for free.
Real causes, real costs, and step-by-step fixes for the problems drivers Google most.
AmpAuto was built by a software engineer who got quoted $1,800 for a $50 fix. The problem was never the repair. It was that car owners walk into the shop blind. Enter your OBD2 code or just describe the symptom, and the AI hands back the most likely causes ranked by probability for your exact year, make, and model, with real parts and labor costs. That is the same diagnostic leverage a good mechanic has, in about 30 seconds. Then you decide what to fix, what to DIY, and where you're being overcharged.
Everything drivers ask before their first diagnosis.
The 50 most common check engine codes with the likely cause and DIY fix cost for each. Sent once, no spam.