Vehicle Engine Management Systems Nissan Maxima 4 (A32)
General information about the engine management system
1993 and 1994 model year engine management/emission control system component locations in the engine compartment. 1 - PAS switch sensor; 2 - Engine coolant temperature...
1993 and 1994 model year engine management/emission control system component locations in the engine compartment. 1 - PAS switch sensor; 2 - Engine coolant temperature...
Engine Management System Error Codes
List of OBD-I diagnostic system trouble codes (models produced in 1993 and 1994.) Code number Possible reason for refusal Code 11 Malfunction in the camshaft position...
List of OBD-I diagnostic system trouble codes (models produced in 1993 and 1994.) Code number Possible reason for refusal Code 11 Malfunction in the camshaft position...
On-Board Diagnostics (OBD) System — Operating Principle and Error Codes
Information about diagnostic devices The proper functioning of injection system components and exhaust gas toxicity reduction systems is checked using a universal...
Information about diagnostic devices The proper functioning of injection system components and exhaust gas toxicity reduction systems is checked using a universal...
Removal and installation of the PCM
Warning! The models of vehicles covered in this manual are equipped with a supplemental restraint system (SRS). Before performing any work near the air bag unit,...
Warning! The models of vehicles covered in this manual are equipped with a supplemental restraint system (SRS). Before performing any work near the air bag unit,...
Checking the condition, replacing and adjusting the throttle position sensor (TPS)
The TPS, which is a variable resistance potentiometer, is mounted on the throttle body and connected to the throttle shaft. Based on the analysis of signals coming from...
The TPS, which is a variable resistance potentiometer, is mounted on the throttle body and connected to the throttle shaft. Based on the analysis of signals coming from...
Checking the condition and replacing the mass air flow (MAF) sensor
The MAF sensor is placed in the air intake sleeve. The sensor uses a filament as a sensing element. The sensor's task is to measure the amount (by mass) of air sucked...
The MAF sensor is placed in the air intake sleeve. The sensor uses a filament as a sensing element. The sensor's task is to measure the amount (by mass) of air sucked...
Checking the condition and replacing the absolute pressure sensor in the pipeline (MAP)
On models since 1996, the manifold absolute pressure sensor in combination with the MAP solenoid valve is used to monitor the depth of vacuum in the intake manifold....
On models since 1996, the manifold absolute pressure sensor in combination with the MAP solenoid valve is used to monitor the depth of vacuum in the intake manifold....
Checking the condition and replacing the intake air temperature (IAT) sensor
The IAT sensor is a thermistor (a resistor whose resistance depends on temperature). The sensor is installed inside the intake air duct and is used to determine the...
The IAT sensor is a thermistor (a resistor whose resistance depends on temperature). The sensor is installed inside the intake air duct and is used to determine the...
Checking the condition and replacing the engine coolant temperature sensor (ECT)
The ECT sensor is also a thermistor (see section Checking the condition and replacing the intake air temperature (IAT) sensor ). On 1993 and 1994 models, the sensor is...
The ECT sensor is also a thermistor (see section Checking the condition and replacing the intake air temperature (IAT) sensor ). On 1993 and 1994 models, the sensor is...
Checking the condition and replacing the crankshaft position sensor (CPS)
On models since 1995, two CKP sensors are used, one of which (rEF sensor) is installed in the front part of the power unit, on the aluminum section of the engine oil...
On models since 1995, two CKP sensors are used, one of which (rEF sensor) is installed in the front part of the power unit, on the aluminum section of the engine oil...
Checking the condition and replacing the camshaft position sensor (CMP)
Note: Performing the following procedure may cause a fault to be stored in the OBD memory and the Check Engine Light to be illuminated. Once the check and any necessary...
Note: Performing the following procedure may cause a fault to be stored in the OBD memory and the Check Engine Light to be illuminated. Once the check and any necessary...
Checking the condition and replacing the pressure switch in the power steering system (PSP)
The PSP is a normally open switch-sensor installed in the hydraulic pressure line between the steering gear housing and the steering pump. When the pressure in the...
The PSP is a normally open switch-sensor installed in the hydraulic pressure line between the steering gear housing and the steering pump. When the pressure in the...
Checking the condition and replacing the oxygen sensor (λ-probe)
General information The λ-probe located in the engine exhaust tract monitors the oxygen content in the exhaust gas flow. When O2 molecules come into contact with the...
General information The λ-probe located in the engine exhaust tract monitors the oxygen content in the exhaust gas flow. When O2 molecules come into contact with the...
Checking the condition and replacing the knock sensor
Knock sensors detect increased engine vibration, usually caused by detonation of the air-fuel mixture. Based on the information received from the sensor, the PCM adjusts...
Knock sensors detect increased engine vibration, usually caused by detonation of the air-fuel mixture. Based on the information received from the sensor, the PCM adjusts...
Checking the condition and replacing the vehicle speed sensor (VSS)
Some models since 1995 include a fuel temperature sensor. The sensor measures the temperature of the fuel inside the gas tank and is a thermistor whose resistance...
Some models since 1995 include a fuel temperature sensor. The sensor measures the temperature of the fuel inside the gas tank and is a thermistor whose resistance...
Checking the condition and replacing the vehicle speed sensor (VSS)
The VSS is mounted on the transmission case and is a variable magnetic resistance sensor. The sensor produces a sinusoidal AC signal whose frequency is proportional to...
The VSS is mounted on the transmission case and is a variable magnetic resistance sensor. The sensor produces a sinusoidal AC signal whose frequency is proportional to...
Checking the condition and replacing components of the idle speed stabilization system
Caution: When working in the engine compartment, try to keep hands, hair and clothing away from moving components such as drive belts, fan blades, etc. Idle Air Control...
Caution: When working in the engine compartment, try to keep hands, hair and clothing away from moving components such as drive belts, fan blades, etc. Idle Air Control...
Power valve operation control system
1. The power valve is provided on 1993 and 1994 models. The system consists of a power valve placed inside the intake manifold), an actuator, a control solenoid valve...
1. The power valve is provided on 1993 and 1994 models. The system consists of a power valve placed inside the intake manifold), an actuator, a control solenoid valve...
Controlled Crankcase Ventilation (PCV) System
1. The PCV system serves to reduce the emission of hydrocarbon compounds into the atmosphere by removing crankcase gases from the engine. The block is purged by running...
1. The PCV system serves to reduce the emission of hydrocarbon compounds into the atmosphere by removing crankcase gases from the engine. The block is purged by running...
Exhaust Gas Recirculation (EGR) System
Functional diagram of a typical EGR backpressure sensor 1 - VRT switch valve; 2 - EGR valve; 3-Electromagnetic EGR; 4 - EGR temperature sensor; 5 - EGR pipe In order to...
Functional diagram of a typical EGR backpressure sensor 1 - VRT switch valve; 2 - EGR valve; 3-Electromagnetic EGR; 4 - EGR temperature sensor; 5 - EGR pipe In order to...
Evaporative Emissions (EVAP) System
General information The EVAP system accumulates fuel vapors in the fuel system during the time the car is parked and ensures their output into the intake tract for...
General information The EVAP system accumulates fuel vapors in the fuel system during the time the car is parked and ensures their output into the intake tract for...
Catalytic Converter — General Information, Checking Condition and Replacement
Note. To avoid violating the warranty obligations that apply to components of exhaust gas reduction systems, check and maintain the catalytic converter in the workshop...
Note. To avoid violating the warranty obligations that apply to components of exhaust gas reduction systems, check and maintain the catalytic converter in the workshop...
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