Engine 2 Data

Engine 2 Data

Scan Tool Data - Engine 2 Data Idle/Upper Radiator Hose Hot/Closed throttle/Park or Neutral/"Closed Loop"/ACC. "OFF"(1 Of 2):

Scan Tool Data - Engine 2 Data Idle/Upper Radiator Hose Hot/Closed throttle/Park or Neutral/"Closed Loop"/ACC. "OFF"(2 Of 2):

Engine Speed - Range 0-16384 RPM
Engine Speed is computed by the Powertrain Control Module (PCM) from the fuel control reference input. It should remain close to desired idle under various engine loads with the engine idling.

Desired Idle - Range 0-3187 RPM
The idle speed that is commanded by the PCM. The PCM will compensate for various engine loads to keep the engine at the desired idle speed.

ECT - Range -40°C to 215°C (-40°F to 419°F)
The Engine Coolant Temperature (ECT) sensor sends engine temperature information to the PCM. The PCM supplies 5 volts to the engine coolant temperature sensor circuit. The sensor is a thermistor which changes internal resistance as temperature changes. When the sensor is cold (internal resistance high), the PCM monitors a high voltage which it interprets as a cold engine. As the sensor warms (internal resistance decreases), the voltage signal will decrease and the PCM will interpret the lower voltage as a warm engine.

IAT - Range -40°C to 215°C (40°F to 419°F)
The PCM converts the resistance of the Intake Air Temperature (IAT) sensor to degrees in the same manner as the ECT sensor Intake air temp is used by the PCM to adjust fuel delivery and spark timing according to incoming air density.

MAP - Range 11-105 kPa, 0-5.0 Volts
The Manifold Absolute Pressure (MAP) sensor measures the change in the intake manifold pressure which results from engine load and speed changes. As the intake manifold pressure increases, the air density in the intake also increases and additional fuel is required.

BARO - Range 11-105 kPa, 0-5.0 Volts
The Barometric Pressure (BARO) sensor measures the change in the intake manifold pressure which results from altitude changes. This value is updated at turn the ignition "ON" and also at Wide Open Throttle (WOT).

TP Sensor - Range 0-5.0 Volts
The Throttle Position (TP) sensor is used by the PCM to determine the amount of throttle demanded by the operator of the vehicle. The TP sensor will read between 0.36-0.96 volt at idle to above 4 volts at Wide Open Throttle (WOT).

TP Angle - Range 0-100%
Throttle Position (TP) angle is computed by the PCM from the TP sensor voltage input. TP angle will auto zero to 0% at idle (TP voltage below .90 volt) and read 100% at Wide Open throttle (WOT).

Total Misfire - Range 0-255 counts
Indicates the total number of misfires that have been detected in all cylinders after 100 engine cycles (one cycle is equal to one complete four stroke cycle). Only increments during steady state cruise conditions.

Air Fuel Ratio - Range 0:1-25.5:1
Indicates the air fuel ratio based on Oxygen Sensor (O2S 1) inputs. The PCM uses fuel trims to adjust fueling to attempt to maintain an air fuel ratio of 14.7:1.

Base PWM Cyl. 1 - Range 0-999.9 mS
Indicates the base Pulse Width Modulation (PWM) or "ON" time of the cylinder 1 injector in milliseconds. When the engine load is increased, the injector pulse width will increase.

Base PWM Cyl. 2 - Range 0-999.9 mS
Indicates the base Pulse Width Modulation (PWM) or "ON" time of the cylinder 2 injector in milliseconds. When the engine load is increased, the injector pulse width will increase.

Base PWM Cyl. 3 - Range 0-999.9 mS
Indicates the base Pulse Width Modulation (PWM) or "ON" time of the cylinder 3 injector in milliseconds. When the engine load is increased, the injector pulse width will increase.

Base PWM Cyl. 4 - Range 0-999.9 mS
Indicates the base Pulse Width Modulation (PWM) or "ON" time of the cylinder 4 injector in milliseconds. When the engine load is increased, the injector pulse width will increase.

A/C Request - Range Yes/No
Represents whether the Air Conditioning (A/C) system is being requested from the HVAC selector. The input is received by PCM and finally to the scan tool over class 2 serial data.

A/C High Side - Range 0-5.0 Volts, 0-459 psi
Displays the pressure value of the A/C refrigerant pressure sensor, helpful in diagnosing DTC P0530.

A/C Relay - Range Off/On
Represents the commanded state of the A/C clutch control relay. The A/C clutch should be engaged when "On" is displayed.

Output Driver I - Range SHRT00000000 OPEN00000000 (binary display)
Output Driver Modules are used to allow various systems to function by providing a ground circuit. The scan tool will display "Os" in each of the 8 positions when the circuitry is OK. It a "1" appears in any of the positions, then either a short or open circuit is being detected.

Output Driver 2 - Range SHRT00000000 OPEN00000000 (binary display)
Output Driver Modules are used to allow various systems to function by providing a ground circuit. The scan tool will display "Os" in each of the 8 positions when the circuitry is OK. If a "1" appears in any of the positions, then either a short or open circuit is being detected.