Why is my engine light on?
The check-engine light means the car's computer has logged a fault — anything from a loose fuel cap to a misfire or a failing sensor. The only way to know is a diagnostic scan that reads the stored code. A flashing light means stop driving — that's a serious misfire that can damage the catalytic converter.
The most common causes
A common trigger — affects fuel mixture and economy.
Surprisingly common and cheap — a loose cap trips the light.
Often cheapA failing cat is a bigger-ticket cause the scan will confirm.
A misfire from coils or plugs often pairs with a flashing light.
Flashing = stopAirflow-sensor or EGR faults are also frequent culprits.
What it costs in Sydney
| Mobile diagnostic + quote | $129 |
The $129 is credited toward the repair if you book it with us.
Get it diagnosed — in your driveway.
We read the stored code, confirm the real fault, and give you a fixed price to fix it.
Common questions
A steady light — drive gently and get it scanned soon. A flashing light means stop: that's a serious misfire that can damage the catalytic converter.
Sometimes (a loose fuel cap), but usually not. A scan tells you for certain what's wrong rather than hoping.
$129, and it's credited toward the repair if you book it with us.