Your AI car co-pilot.
Decode codes, identify parts, evaluate listings, plan a build. Send a photo on Pro for instant visual analysis.
Free tier includes 5 questions a day, no card required.
Decode an OBD-II code
Decode P0420 on a 2014 Honda Civic with 140k miles. Likely cause and what to check first?
Identify a part
I'll send you a photo of a part I found in my engine bay. Tell me what it is and whether it's normal.
Diagnose a noise
Hear a high-pitched whine that gets louder as I accelerate, only above 50 mph. Front-wheel drive sedan, 90k miles.
Should I buy this used car?
Looking at a 2018 BMW 340i with 78k miles, $24,500, one owner, full service history. What should I inspect?
Mod recommendations
Stage 1 mod budget $1,500 for a 2017 Subaru WRX. Daily driver, no track. What gets me the most usable power?
Not a substitute for a licensed mechanic. Verify safety-critical advice with a professional.