#preparation
7 posts in Car Diagnostics blog about "preparation" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Pre-winter OBD checklist: the five readings that predict trouble
Winter does not create faults, it exposes marginal ones. Five values checked in October tell you which of yours will not survive the first hard frost.
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Leaving a car for a month or more: preparation and checks on return
A month standing harms a car differently from a month driving. Preparing for storage and what to check on return.
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An emergency kit: what to carry so you do not depend on strangers
A kit in the boot is not for repairing the car but for waiting safely for help. What works and what rides along for nothing.
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Selling a car: the preparation that adds value and the kind that scares buyers off
An experienced buyer reads the traces of pre-sale preparation as a confession. What genuinely raises the price and what destroys trust.
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Tools in the boot: what is genuinely useful and what rides along for nothing
A big socket set in the boot almost never saves the day. What actually works at the roadside, why an adapter beats spanners, and what belongs at home instead.
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Preparing a car for sale: what to fix and what to disclose honestly
A buyer with an adapter will assess your car in twenty minutes. What is worth fixing in advance, what is cheaper to disclose, and why clearing codes before a viewing works against you.
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Preparing for an inspection: why "clear the codes first" is the worst possible advice
The most widespread advice before a test is to clear the codes. That is precisely the action that guarantees failure: the readiness monitors drop to not ready, and the inspector sees it immediately.