Blue point Microscan III Manual do Utilizador descarregar pdf (Página 58)

Data Parameters Long Parameter Names

7.1.1 Short Parameter Names

Table 7-2 lists data parameter definitions alphabetically by their abbreviated name. The short, or

abbreviated, parameter name displays on most data lists.

NOTE:

i Counters (like cylinder bank or sensor position) in a parameter name are represented by a ‘y’ or

‘x’ in the table.

The vehicle ECM determines the parameter data list, not all parameters display on every vehicle.

Table 7-2

Short parameter names (sheet 1 of 3)

Parameter Description for short parameter

AAT

Can be obtained from an AAT sensor directly or deducted by the ECM from

other sensor signals.

AIR_STAT

Shows the position of the Secondary Air system (upstream or downstream of

the first catalytic converter) and/or its status.

APP_x

Shows the absolute pedal position. The output signal is a proportional

percentage to the input voltage (when proportional) or 100% minus the

proportional percentage (when inversely proportional).

BARO

Can be obtained from a BARO or MAP sensor directly or deducted by the ECM

from other sensor (MAF) signals. If the value at 'ignition key on' and certain

driving conditions is stored into a memory, clearing the memory may lead to

inaccurate BARO values.

CATEMPx/y

Shows the catalyst substrate temperature for the mentioned bank or the

temperature of the mentioned bank and oxygen sensor. Can be obtained from a

sensor directly or deducted by the ECM from other sensor signals.

CLR_DIST

Accumulated distance since the DTCs were cleared. The maximum number is

65535. To set to 0, reset all DTCs

CLR_TIME

Accumulated time since the DTCs were cleared. The maximum number is

65535. To set to 0, reset all DTCs

ECT

Shows the temperature as measured by either the engine coolant temperature

sensor or the cylinder head temperature sensor. If these sensors are not

available,engine oil temperature may be shown instead.

ECT_ERR

The Exhaust Gas Recirculation system control and feedback devices differ,

therefore no 'actual' or 'commanded' status can be shown. The value is (actual

EGR - commanded EGR), commanded EGR. Example; (5%-10%)/10%=-50%

ECT_PCT

Shows the status of the Exhaust Gas Recirculation system between 0% (no

flow) and 100% (max. flow, max. duty cycle)

EQ_RAT

Shows the Air/Fuel ratio as commanded by the ECM. To obtain the actual Air/

Fuel ratio, multiply the stoichiometric Air/Fuel ratio by the equivalence ratio.

Conventional oxygen sensors shows the ration when in Open Loop only. In

Closed Loop '1.0' is shown. Wide range or linear oxygen sensors show the ratio

in Open Loop and Closed Loop.

EQ_RATxy

Status of the oxygen sensor in V or as a ratio. Designed for linear or wide-ratio

oxygen sensors. See also PID $14 and up or $34 and up.

EVAP_PCT

Shows the status of the Evaporative Purge Control Valve between 0% (no flow)

and 100% (max. flow, max. duty cycle)

EVAP_VP

Evaporative system vapor pressure, if used by the control module. Can be

obtained from a fuel pressure sensor in the tank or in the evaporative system

vapor line.

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