Shenzhen Scan-DIY CR-PRO, Руководство пользователя

Страница: 78 / 119

78 SCAN-DIY CR-PRO User’s Manual
established standard for diagnostic test modes
J2012 – SAE:
established standard accepted by EPA as the standard test report language for
emission tests
KAM:
Keep Alive Memory
Knock Sensor (KS):
Used to detect engine detonation or knock. The sensor contains a piezoelectric
element and is threaded into the engine block. Special construction makes the
element sensitive only to engine vibrations associated with detonation.
Knock:
Uncontrolled ignition of the air/fuel mixture in the cylinder. Also referred to as
detonation or ping. Knock indicates extreme cylinder pressures or “hotspots”
which are causing the air/fuel mixture to detonate prematurely.
KOEO:
Key On Engine Off. Turn the ignition key to on, but don’t start engine.
KOER:
Key On Engine Running. Start the vehicle.
LCD:
Liquid Crystal Display
LTFT:
Long Term Fuel Trim
M/T:
Manual transmission or manual transaxle.
MAF:
Mass Air Flow (sensor). Measures the amount and density of air entering the
engine and sends a frequency or voltage signal to the PCM. The PCM uses this
signal in its fuel delivery calculations.
MAP:
Manifold Absolute Pressure (sensor). Measures intake manifold vacuum or
pressure and sends a frequency or voltage signal (depending on sensor type)
to the PCM. This gives the PCM information on engine load for control of fuel
delivery, spark advance, and EGR flow.
| SCAN-DIY CR-Pro Work On OBD-II/EOBD-II/CANBUS Protocol Vehicle