Blog
Fault codes, sensors and the tricks of diagnostics: what the codes mean, where to start checking and why a cheap adapter sometimes lets you down.
Inspection readiness: why a healthy car gets turned away
No warning light, yet the station asks you to come back later. What the on-board self-tests are and how to complete them.
3 September 20263 min
Live data: what to look at first
Sixty-seven parameters is a lot. Here are five that answer most questions about how the engine feels.
2 September 20262 min
«No answer» is not «no faults»
The difference between silence and a clean memory is expensive. Most cheap scanners do not tell the two apart.
2 September 20262 min
Why the service reset does not work on every car
It is easy to promise a reset on every car. We say plainly where it will work and where it will not — and why.
2 September 20262 min
Fault code P0171: where to start
«System too lean» is the most common entry in the engine memory. The cause is almost never the part people suspect first.
2 September 20262 min
Which OBD-II adapter to choose
You do not need an expensive adapter, but the cheapest clones support fewer commands — and you find out not at once, but at the service reset.
2 September 20263 min