Misfire Counter
The misfire counter records how many misfires each cylinder has.
What is Misfire Counter?
Scan tools often show it in live data. It helps find the faulty cylinder. Mode 6 data may contain it. Moving a coil or spark plug to another cylinder and watching whether the misfires follow confirms the faulty part. Counts that rise on several cylinders suggest a shared cause such as fuel pressure or a vacuum leak.
How it works
The control unit detects crankshaft speed drops.
Why it matters for your car
Rough roads can cause false counts. Swap parts to confirm the cause.
Other terms
- Axle Stands (Jack Stands)
- Bonnet (Hood)
- Bore And Stroke
- Camber
- Clutch Slave Cylinder
- Cold Cranking Amps (CCA)
- Column Gear Shift
- Coolant Expansion Tank
- Euro NCAP (European New Car Assessment Programme)
- Gross Train Weight
- Heated Door Mirrors
- i-Size Child Seats (UN R129)
- RTV Silicone Sealant (Gasket Maker)
- Saloon (Sedan)
- Service History
- State Of Charge (SoC)
- Tappet Noise (Lifter Tick)
- Throttle Body
- Transmission Adaptation (Relearn)
- Tyre Bulge (Sidewall Bubble)