How much should I expect to pay a mobile mechanic to diagnose a persistent check engine light code P0420 in my driveway?
Download run
Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
How much should I expect to pay a mobile mechanic to diagnose a persistent check engine light code P0420 in my driveway?
1 real search · 1 real-search pass
Manassas Virginia mobile mechanic diagnostic fee P0420 catalytic converter diagnosis cost 2026Google ↗
OBSERVEDShort fact
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT1 real searches · gpt-6
Manassas Virginia mobile mechanic diagnostic fee P0420 catalytic converter diagnosis cost 2026 Google ↗
- Mobile Mechanic- For your Electrical & Mechanical Service NoVA areas - automotive services · washingtondc.craigslist.org
- Northern Virginia Auto Repair · kevinsmobileautoservice.com
- Diagnose Check Engine Light | Mobile Diagnostics from $130 · ezcarclinic.com