VIDEO

Informace

Acura

Acura P0457

See the basic definition of a diagnostic error. This will help you to clarify the main causes of the fault code. You will understand the program of the control unit
Basic DTC analysis according to OBD2 protocol standard.

OBD2 or On-Board Diagnostics displays messages for basic group styles. More comprehensible code composition has been standard since 2000. The DTC code consists of five characters and its composition will be shown in this video

Insight into programming

The basic unit for the operation of any computer is the bit. Logic 0 and 1 are expressed by a single bit. Diagnostics The error code is composed of 16 bits. The first two bits define one of the four basic circuits. The video will show you a comprehensive overview of the composition of the error report

A diagnostically understandable description of the Diagnostic Trouble Code

Acura P0457

Basic error definition

Evaporative Emission (EVAP) System Leak Detected Fuel Fill Cap Loose or Missing

Cause of DTC

Engine coolant temperature before EVAP purge control starts 140 ºF (60 ºC), 2 mph (2 km h), Barometric pressure, 76 kPa (22.5 in. Hg, 569 mmHg), Battery voltage 10.5 volts or more, fuel trim 0.73-1.47, system is in close loop. The execution time is continuous and the duration time is 12 seconds or more. The output from the fuel cap monitor is 0.053 or less for at least 12 seconds (when there is no NG judgment history in this drive cycle). P0455 or P0456 are judged as NG. NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot.