CAPITALIZACIÓN DEL COSTO DE MATERIAL LIXIVIABLE:

O2 CTRL FACTOR(CYL 4-6)(%) _______________________________ (range: not available) Indicates the operation and Short-term correction of fuel delivery for cylinders 1 to 3 (Bank 1) or 4 to 6 (Bank 2). They show whether the ECM is commanding a rich or lean mixture.

A number above 0% indicates that the ECM has commanded a temporary rich mixture correction.

A number below 0% indicates that the ECM has commanded a temporary lean mixture correction.

These Short-term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values.

O2 CTRL READY _______________________________________________ (range: YES/NO) Indicates whether the lambda circuit is ready to reliably measure the exhaust oxygen content.

O2 INTEGRATOR ___________________________________________ (range: not available) Indicates the operation and Short-term correction of the fuel delivery. It shows whether the ECM is commanding a rich or lean mixture.

The number can range from 0 to 255 with 128 as the midpoint. A number above 128 indicates that the ECM has commanded a temporary rich mixture correction. A number below 128 indicates that the ECM has commanded a temporary lean mixture correction.

These Short-term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values. Fuel correction operates only in closed loop. In open loop, a fixed value displays.

O2 LOOP CLOSED______________________________________________ (range: YES/NO) Indicates whether the lambda regulation part of the ECM is in closed loop. This depends on the lambda sensor temperature and operating conditions of the engine. Under full load conditions, the ECM goes into open loop.

O2 REGULATION ___________________________________________ (range: not available) Indicates the operation and Short-term correction of the fuel delivery. It shows whether the ECM is commanding a rich or lean mixture.

The number theoretically can range from 0.00 to 1.99 with 1.00 as the midpoint, but in practice the number only ranges from 0.9 to 1.1. A number above 1.0 indicates that the ECM has commanded a temporary rich mixture correction. A number below 1.0 indicates that the ECM has commanded a temporary lean mixture correction.

Table 6-1 Normal ranges and factory names for O2 control factor parameters

Factory Data Name Normal Value Working Range

O2 SENSOR LAMBDA FACTOR Range: 0.5–1.5; Normal Value: 1.0 ±0.3 is base mid-point; For 2.8 (AAA) spec: 0.80–1.20 O2 SENSOR LAMBDA FACTOR Range: 0.5–1.5; Normal Value: 1.0 ±0.3 is base

mid-point LAMBDA FACT IDLE ADAPT; LAMBDA

FACT PART ADAPT; LAMBDA FACT ADAPTMED/FULL LOAD

Range: 0.5–1.5; Normal Value: 1.0 ±0.3 (0.7–1.3) is base mid-point; For 2.0L (ABA) IDLE ADAPT: 0.87–1.2;

For 2.8L (AAA) IDLE ADAPT: 0.53–1.47; Part Load:

0.80–1.20; Low Load: 0.53–1.47

These Short-term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values. Fuel correction operates only in closed loop. In open loop, a fixed value displays.

O2 REGULATION(%)

O2 REGULATION(BANK 1)(%)

O2 REGULATION(BANK 2)(%) ________________________________ (range: not available) Indicates the operation and Short-term correction of the fuel delivery. It shows whether the ECM is commanding a rich or lean mixture.

A number above 0% indicates that the ECM has commanded a temporary rich mixture correction.

A number below 0% indicates that the ECM has commanded a temporary lean mixture correction.

These Short-term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values. Fuel correction operates only in closed loop. In open loop, a fixed value displays.

O2 REGULATION ACTIVE ________________________________________ (range: YES/NO) Indicates whether the lambda regulation part of the ECM is active or not (open/closed loop). This depends on the lambda sensor temperature and operating conditions of the engine. Under full load conditions, the ECM goes into open loop.

O2 REGULATION ON STOP ______________________________________ (range: YES/NO) Indicates whether the lambda regulation part of the ECM is active or not (open/closed loop). This depends on the lambda sensor temperature and operating conditions of the engine. Under full load conditions, the ECM goes into open loop.

O2 SENSOR(V) O2 SENSOR 1(V) O2 SENSOR 2(V)

O2 SENSOR(BANK 1)(V) O2 SENSOR(BANK 1)(V) O2 SENSOR(BANK 2)(V)

O2 SENSOR(BANK 2)(V) _____________________________________ (range: not available) Indicates oxygen sensor (O2S) voltage. The O2S is the primary sensor that indicates whether the engine is running rich or lean. An O2S can have a range of 0.0 to 1.0V or 0.0 to 5.0V.

O2 SENSOR 1 and O2 SENSOR 2 refer to cylinder Bank 1 or cylinder Bank 2 respectively.

The most common O2Ss generate a voltage signal that ranges from 0.0 to 1.0V. A high signal (0.48 to 1.00V) indicates a rich mixture; a low signal (0.0 to 0.48) indicates a lean mixture. In normal operation, the O2S voltage ranges from 0.1 to 1.0V. The O2S must be hot, and the ECM must be in closed loop before the ECM will respond to the sensor signal.

Some models, such as the VW 2001 2.0L with the AEG engine and the new 2002 Passat W8 (BDP), use a 0–5V O2S. Rich is high voltage; lean is low voltage. Other models may use a Linear Air/Fuel Ratio Sensor (A/F sensor) which measures the exact air/fuel mixture, the signal does not constantly switch between low and high. The voltage displayed (display group 33 in Table 6-2 below) for these is an ECM computed value where 1.5V = 1 lambda or the ideal fuel mixture ratio of 14.7:1. Higher voltage indicates correction for rich mixture and lower voltage indicates a correction for a lean mixture. Under normal load, the voltage should vary around 1.5V, which means the mixture is right at stoichiometric or Lambda = 1. During deceleration from 3000 RPM,

the mixture is lean and the voltage should go higher than 1.5V. Under full load acceleration, the mixture is rich and the signal should go low, 1V or lower.

O2 SENSOR HEATER ___________________________________________ (range: ON/OFF) Indicates whether the preheating of the O2 sensor is ON or OFF.

O2 SENSOR HEATER(BK1-SNS1) _________________________________ (range: ON/OFF) Indicates if the before CAT O2S on Bank 1 heater is turned on.

O2 SENSOR HEATER(BK1-SNS2) _________________________________ (range: ON/OFF) Indicates if the before CAT O2S on Bank 2 heater is turned on.

O2 SENSOR HEATER(BK2-SNS1) _________________________________ (range: ON/OFF) Indicates if the preheating of the after CAT O2S is ON or OFF (Bank 1).

O2 SENSOR HEATER(BK2-SNS2) _________________________________ (range: ON/OFF) Indicates if the preheating of the after CAT O2S is ON or OFF (Bank 2).

O2 SENSOR HEATER AFTER CAT _________________________________ (range: ON/OFF) Indicates if the preheating of the after CAT O2S is ON or OFF.

O2 SENSOR HEATER BEFORE CAT _______________________________ (range: ON/OFF) Indicates if the preheating of the before CAT O2S is ON or OFF.

O2 SENSOR READY ____________________________________________ (range: YES/NO) Indicates whether the lambda regulation part of the ECM is ready or not (open/closed loop). This depends on the lambda sensor temperature and operating conditions of the engine. Under full load conditions, the ECM goes into open loop.

O2 VALUE _________________________________________________ (range: not available) Indicates the operation and short term correction of the fuel delivery. It shows whether the ECM is commanding a rich or lean mixture.

The number theoretically can range from 0.00 to 1.99 with 1.00 as the midpoint. A number above 1.0 indicates that the ECM has commanded a temporary rich mixture correction. A number below 1.0 indicates that the ECM has commanded a temporary lean mixture correction.

These short term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values. Fuel correction operates only in closed loop. In open loop, a fixed value displays.

O2 VALUE(ACTUAL)(%) O2 VALUE(BANK 1)(%)

O2 VALUE(BANK 2)(%) ______________________________________ (range: not available) Indicates the operation and Short-term correction of the fuel delivery for the stated cylinders. They show whether the ECM is commanding a rich or lean mixture.

A number above 0% indicates that the ECM has commanded a temporary rich mixture correction.

A number below 0% indicates that the ECM has commanded a temporary lean mixture correction.

Table 6-2 Display group 33 Display

Group Sensor Bank 1,

Sensor 1

These Short-term correction numbers are also used by the ECM to learn a fuel correction pattern or trend and are stored in the learned mixture or lambda values. Fuel correction operates only in closed loop. In open loop, a fixed value displays.

OIL TEMPERATURE(°C/°F) ___________________________________ (range: not available) Indicates engine oil temperature in degrees.

OPERATING MODE _________________________________________ (range: not available) Indicates the current operating mode of the engine system.

OVERRUN_____________________________________________________ (range: YES/NO) Indicates whether the current engine operating condition is overrun.

PARK/NEUTRAL POSITION ____________________________________(range: P-N-/-R-DL) Indicates whether an automatic transmission is in park or neutral, or in one of the drive ranges. It should read: P-N if the transmission is in either park or neutral R-DL if the transmission is in any forward gear or in reverse.

PARK/NEUTRAL POSITION _________________________________ (range: P/N /NOT P/N) Indicates whether an automatic transmission is in park or neutral (reads P/N), or in one of the drive ranges (reads NOT P/N).

PART LOAD DETECTED _________________________________________ (range: YES/NO) Indicates whether the ECM has determined that the engine is currently at part load. It is used during some adaptive learning processes.